Hector Quadrotor ported to ROS Noetic with Gazebo 11
I’m a mechatronic engineer from UPIITA, Mexico. I love development, music and graphic design.
I started with C / C ++, then Matlab, LabView, Python, JavaScript and Typescript. Currently I am programming mainly in NextJs (front) and NestJS (back) technologies.
Check me out on my portfolio, blog or take a look on my guitar tabs on Ultimate Guitar profile or tabs.
Hi, I am doing a reinforcement-leaning-based obstacle avoidance simulation with your quadrotor model. But I encountered a problem once the UAV flippered over due to impact, the motor just shut down. I tried to reset the position of the UAV and set a Z linear velocity to the UAV. But the UAV still kept still. This problem can only be solved by relaunching the file and rerunning the program. Can I ask if is there any programming-based method to solve this issue?
Thanks in advance!
Recently, I have been doing research with the spawn_quadrotor_with_kinect.launch file, which has something to do with the kinect_camera.urdf.xacro file. However, when I tried to start the launch in Gazebo, some errors occurred:
RLException: while processing /home/zyh/catkin_ws/src/Hector/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_gazebo/launch/spawn_quadrotor_with_kinect.launch:
while processing /home/zyh/catkin_ws/src/Hector/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_gazebo/launch/spawn_quadrotor.launch:
Invalid tag: Cannot load command parameter [robot_description]: command [['/opt/ros/noetic/lib/xacro/xacro', '/home/zyh/catkin_ws/src/Hector/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_description/urdf/quadrotor_with_kinect.gazebo.xacro', 'base_link_frame:=/base_link', 'world_frame:=world']] returned with code [2].
Param xml is <param name="robot_description" command="$(find xacro)/xacro '$(arg model)' base_link_frame:=$(arg base_link_frame) world_frame:=$(arg world_frame)"/
The traceback for the exception was written to the log file
And I found that this error is caused by the <xacro:inertial_sphere mass="0.01" diameter="0.07" /> in kinect_camera.urdf.xacro file, line 17.
Personally, I supposed that this is because inertial_sphere tag is not pre-defined in the kinect_camera.urdf.xacro, which leads to the error. Therefore, I tried to define a inertial_sphere.urdf.xacro file first and include it later in the kinect_camera.urdf.xacro file to solve this problem. Here is the content:
<?xml version="1.0"?>
<robot xmlns:xacro="http://www.ros.org/wiki/xacro">
<xacro:macro name="inertial_sphere" params="mass diameter">
<inertial>
<mass value="${mass}"/>
<inertia ixx="${(2/5)*mass*pow((diameter/2),2)}" ixy="${(2/5)*mass*pow((diameter/2),2)}" ixz = "${(2/5)*mass*pow((diameter/2),2)}" iyy="${(2/5)*mass*pow((diameter/2),2)}" iyz = "${(2/5)*mass*pow((diameter/2),2)}" izz="${(2/5)*mass*pow((diameter/2),2)}"/>
<origin xyz="0 0 0" rpy="0 0 0" />
</inertial>
<visual>
<geometry>
<sphere radius="${diameter/2}"/>
</geometry>
</visual>
</xacro:macro>
</robot>
I am writing to discuss with you whether this is a mistake caused by undefinition or my own problem. I hope to hear from you soon!
Best Regards :)
I am trying to control the angular velocity of this hector quadrotor on Noetic and Ubuntu 20.04. However, when I am trying to publish cmd/vel with Twist msgs to control both the linear and angular velocity of the UAV, only the linear command works. Can you give me some clues about how to command the angular velocity? If does exist some methods, is the command relying on the reference frame or the body frame?
Thanks in advance!
Hi, @RAFALAMAO, thanks for sharing your project here.
Building your project, the error occured. Test environment is on Ubuntu 20.04 (ROS noetic).
When I type that command
$ git clone https://github.com/ros-geographic-info/unique_identifier.gitThen, build,
--------------------------------------------------------
Profile: default
Extending: [env] /opt/ros/noetic
Workspace: /home/scpark/cps_ws
--------------------------------------------------------
Build Space: [exists] /home/scpark/cps_ws/build
Devel Space: [exists] /home/scpark/cps_ws/devel
Install Space: [unused] /home/scpark/cps_ws/install
Log Space: [missing] /home/scpark/cps_ws/logs
Source Space: [exists] /home/scpark/cps_ws/src
DESTDIR: [unused] None
--------------------------------------------------------
Devel Space Layout: linked
Install Space Layout: None
--------------------------------------------------------
Additional CMake Args: None
Additional Make Args: None
Additional catkin Make Args: None
Internal Make Job Server: True
Cache Job Environments: False
--------------------------------------------------------
Buildlisted Packages: None
Skiplisted Packages: None
--------------------------------------------------------
Workspace configuration appears valid.
NOTE: Forcing CMake to run for each package.
--------------------------------------------------------
[build] Found 3 packages in 0.0 seconds.
[build] Updating package table.
Starting >>> catkin_tools_prebuild
Finished <<< catkin_tools_prebuild [ 1.0 seconds ]
Starting >>> uuid_msgs
Finished <<< uuid_msgs [ 1.4 seconds ]
Starting >>> unique_id
__________________________________________________________________________________________________________________________________________________________________________________________________________
Errors << unique_id:cmake /home/scpark/cps_ws/logs/unique_id/build.cmake.000.log
/opt/ros/noetic/lib/python3/dist-packages/_distutils_hack/__init__.py:18: UserWarning: Distutils was imported before Setuptools, but importing Setuptools also replaces the `distutils` module in `sys.modules`. This may lead to undesirable behaviors or errors. To avoid these issues, avoid using distutils directly, ensure that setuptools is installed in the traditional way (e.g. not an editable install), and/or make sure that setuptools is always imported before distutils.
warnings.warn(
/opt/ros/noetic/lib/python3/dist-packages/_distutils_hack/__init__.py:33: UserWarning: Setuptools is replacing distutils.
warnings.warn("Setuptools is replacing distutils.")
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: setup.py --help [cmd1 cmd2 ...]
or: setup.py --help-commands
or: setup.py cmd --help
ERROR: invalid command 'unique_id'
CMake Error at /opt/ros/noetic/share/catkin/cmake/safe_execute_process.cmake:11 (message):
execute_process(/home/scpark/cps_ws/build/unique_id/catkin_generated/env_cached.sh
"/usr/bin/python3"
"/opt/ros/noetic/share/catkin/cmake/interrogate_setup_dot_py.py"
"unique_id" "/home/scpark/cps_ws/src/unique_identifier/unique_id/setup.py"
"/home/scpark/cps_ws/build/unique_id/catkin_generated/setup_py_interrogation.cmake")
returned error code 1
Call Stack (most recent call first):
/opt/ros/noetic/share/catkin/cmake/catkin_python_setup.cmake:46 (safe_execute_process)
CMakeLists.txt:8 (catkin_python_setup)
cd /home/scpark/cps_ws/build/unique_id; catkin build --get-env unique_id | catkin env -si /usr/bin/cmake /home/scpark/cps_ws/src/unique_identifier/unique_id --no-warn-unused-cli -DCATKIN_DEVEL_PREFIX=/home/scpark/cps_ws/devel/.private/unique_id -DCMAKE_INSTALL_PREFIX=/home/scpark/cps_ws/install; cd -
..........................................................................................................................................................................................................
Failed << unique_id:cmake [ Exited with code 1 ]
Failed <<< unique_id [ 1.1 seconds ]
Abandoned <<< unique_identifier [ Unrelated job failed ]
[build] Summary: 2 of 4 packages succeeded.
[build] Ignored: None.
[build] Warnings: None.
[build] Abandoned: 1 packages were abandoned.
[build] Failed: 1 packages failed.
[build] Runtime: 3.4 seconds total.
[build] Note: Workspace packages have changed, please re-source setup files to use them.I don't know how to fix it...
Hi,
I'm using this quadrotor model with the Neurorobotics Platform, which as far as I know is basically just ROS + spiking neural network librar(y/ies) + custom UI
I was given these instructions by the team and I was able to get through them. However, upon launching the simulation their platform gives me the error:
Error while loading some assets!
quadrotor::base_link::base_link_fixed_joint_lump__sonar_link_visual_1
quadrotor::base_link::base_link_visual
Some assets have not been found!
While I understand you may be unfamiliar with the NRP, would you happen to know what could cause this error?
Thanks!
Hello and thanks for your work in this repository. I was wondering if hector_ui to control the drone can work on Ros Melodic, tried it but i got some errors.
I am trying to get z position of hector_quadrotor in simulation. I can get X and Y axis coordinates but I couldn't get Z coordinate. I tried to get it by using GPS but the values are not correct. So I want to get Z coordinate by using barometer or another sensor.
Here the a part of pose_estimation_node.cpp:
void PoseEstimationNode::gpsCallback(const sensor_msgs::NavSatFixConstPtr& gps, const
geometry_msgs::Vector3StampedConstPtr& gps_velocity) {
boost::shared_ptr m = boost::static_pointer_cast(pose_estimation_->getMeasurement("gps"));
if (gps->status.status == sensor_msgs::NavSatStatus::STATUS_NO_FIX) {
if (m->getStatusFlags() > 0) m->reset(pose_estimation_->state());
return;
}
GPS::Update update;
update.latitude = gps->latitude * M_PI/180.0;
update.longitude = gps->longitude * M_PI/180.0;
update.velocity_north = gps_velocity->vector.x;
update.velocity_east = -gps_velocity->vector.y;
m->add(update);
if (gps_pose_publisher_ || sensor_pose_publisher_) {
geometry_msgs::PoseStamped gps_pose;
pose_estimation_->getHeader(gps_pose.header);
gps_pose.header.stamp = gps->header.stamp;
GPSModel::MeasurementVector y = m->getVector(update, pose_estimation_->state());
if (gps_pose_publisher_) {
gps_pose.pose.position.x = y(0);
gps_pose.pose.position.y = y(1);
gps_pose.pose.position.z = gps->altitude - pose_estimation_->globalReference()- >position().altitude;
double track = atan2(gps_velocity->vector.y, gps_velocity->vector.x);
gps_pose.pose.orientation.w = cos(track/2);
gps_pose.pose.orientation.z = sin(track/2);
gps_pose_publisher_.publish(gps_pose);
}
sensor_pose_.pose.position.x = y(0);
sensor_pose_.pose.position.y = y(1);
"""I add it here"""
}
If I add -----> sensor_pose_.pose.position.z = gps->altitude,
I can get a Z coordinate on RVIZ simulation or gnome-terminal. But as I said, the values are very meanless (negative values).
Also ------> gps_pose.pose.position.z = gps->altitude - pose_estimation_->globalReference()- >position().altitude;
It is not working because position().altitude return NAN. There are another measurement method in pose_estimation_node.cpp like barometer. How can I use barometer value.
Here the another part of pose_estimation_node.cpp:
#if defined(USE_HECTOR_UAV_MSGS)
void PoseEstimationNode::baroCallback(const hector_uav_msgs::AltimeterConstPtr&
altimeter) {
boost::shared_ptr<Baro> m = boost::static_pointer_cast<Baro>(pose_estimation_->getMeasurement("baro"));
m->add(Baro::Update(altimeter->pressure, altimeter->qnh));
}
#else
void PoseEstimationNode::heightCallback(const geometry_msgs::PointStampedConstPtr&
height) {
boost::shared_ptr<Height> m = boost::static_pointer_cast<Height>(pose_estimation_->getMeasurement("height"));
Height::MeasurementVector update;
update(0) = height->point.z;
m->add(Height::Update(update));
if (sensor_pose_publisher_) {
sensor_pose_.pose.position.z = height->point.z - m->getElevation();
}
}
#endif
void PoseEstimationNode::magneticCallback(const geometry_msgs::Vector3StampedConstPtr& magnetic) {
boost::shared_ptr<Magnetic> m = boost::static_pointer_cast<Magnetic>(pose_estimation_->getMeasurement("magnetic"));
Magnetic::MeasurementVector update;
update.x() = magnetic->vector.x;
update.y() = magnetic->vector.y;
update.z() = magnetic->vector.z;
m->add(Magnetic::Update(update));
if (sensor_pose_publisher_) {
sensor_pose_yaw_ = -(m->getModel()->getTrueHeading(pose_estimation_->state(), update) - pose_estimation_->globalReference()->heading());
}
}
Invalid tag: Cannot load command parameter [robot_description]: command [['/opt/ros/noetic/lib/xacro/xacro', '/home/starfleeet-robotics/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_description/urdf/quadrotor.gazebo.xacro', 'base_link_frame:=/base_link', 'world_frame:=world']] returned with code [2].
Param xml is
Hello! I had follow the step to run the command, but i can't use the Hector Quadrotor to control the UAV.
Thank you!!!!!
i got these errors while building my workspace
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h: In member function ‘virtual gazebo::msgs::WorldControl* gazebo::msgs::WorldControl::New(google::protobuf::Arena*) const’:
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h:130:12: error: ‘CreateMaybeMessage’ was not declared in this scope
130 | return CreateMaybeMessage<WorldControl>(arena);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h:130:43: error: expected primary-expression before ‘>’ token
130 | return CreateMaybeMessage<WorldControl>(arena);
| ^
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h: In member function ‘virtual int gazebo::msgs::WorldControl::GetCachedSize() const’:
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h:146:44: error: ‘_cached_size_’ was not declared in this scope
146 | int GetCachedSize() const final { return _cached_size_.Get(); }
| ^~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h: In member function ‘gazebo::msgs::WorldReset* gazebo::msgs::WorldControl::mutable_reset()’:
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h:343:15: error: ‘CreateMaybeMessage’ was not declared in this scope
343 | auto* p = CreateMaybeMessage<::gazebo::msgs::WorldReset>(GetArenaNoVirtual());
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h:343:60: error: expected primary-expression before ‘>’ token
343 | auto* p = CreateMaybeMessage<::gazebo::msgs::WorldReset>(GetArenaNoVirtual());
| ^
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h: In member function ‘void gazebo::msgs::WorldControl::set_allocated_reset(gazebo::msgs::WorldReset*)’:
/usr/include/gazebo-11/gazebo/msgs/world_control.pb.h:357:45: error: ‘GetOwnedMessage’ is not a member of ‘google::protobuf::internal’
357 | reset = ::google::protobuf::internal::GetOwnedMessage(
| ^~~~~~~~~~~~~~~
In file included from /usr/include/gazebo-11/gazebo/msgs/MessageTypes.hh:123,
from /usr/include/gazebo-11/gazebo/msgs/msgs.hh:35,
from /usr/include/gazebo-11/gazebo/physics/Entity.hh:28,
from /usr/include/gazebo-11/gazebo/physics/Model.hh:30,
from /usr/include/gazebo-11/gazebo/physics/Actor.hh:30,
from /usr/include/gazebo-11/gazebo/physics/physics.hh:2,
from /opt/ros/noetic/include/gazebo_ros_control/robot_hw_sim.h:45,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/include/hector_quadrotor_controller/quadrotor_hardware_gazebo.h:32,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/src/quadrotor_hardware_gazebo.cpp:29:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: At global scope:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:335:41: error: ‘CachedSize’ in namespace ‘google::protobuf::internal’ does not name a type; did you mean ‘ToCachedSize’?
335 | mutable ::google::protobuf::internal::CachedSize _cached_size_;
| ^~~~~~~~~~
| ToCachedSize
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: In member function ‘virtual gazebo::msgs::UserCmd* gazebo::msgs::UserCmd::New() const’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:151:12: error: ‘CreateMaybeMessage’ was not declared in this scope
151 | return CreateMaybeMessage<UserCmd>(NULL);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:151:38: error: expected primary-expression before ‘>’ token
151 | return CreateMaybeMessage<UserCmd>(NULL);
| ^
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: In member function ‘virtual gazebo::msgs::UserCmd* gazebo::msgs::UserCmd::New(google::protobuf::Arena*) const’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:155:12: error: ‘CreateMaybeMessage’ was not declared in this scope
155 | return CreateMaybeMessage<UserCmd>(arena);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:155:38: error: expected primary-expression before ‘>’ token
155 | return CreateMaybeMessage<UserCmd>(arena);
| ^
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: In member function ‘virtual int gazebo::msgs::UserCmd::GetCachedSize() const’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:171:44: error: ‘_cached_size_’ was not declared in this scope
171 | int GetCachedSize() const final { return _cached_size_.Get(); }
| ^~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: In member function ‘std::string* gazebo::msgs::UserCmd::release_description()’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:435:23: error: ‘struct google::protobuf::internal::ArenaStringPtr’ has no member named ‘ReleaseNonDefaultNoArena’; did you mean ‘ClearToDefaultNoArena’?
435 | return description_.ReleaseNonDefaultNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
| ^~~~~~~~~~~~~~~~~~~~~~~~
| ClearToDefaultNoArena
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: In member function ‘std::string* gazebo::msgs::UserCmd::release_entity_name()’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:580:23: error: ‘struct google::protobuf::internal::ArenaStringPtr’ has no member named ‘ReleaseNonDefaultNoArena’; did you mean ‘ClearToDefaultNoArena’?
580 | return entity_name_.ReleaseNonDefaultNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
| ^~~~~~~~~~~~~~~~~~~~~~~~
| ClearToDefaultNoArena
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: In member function ‘gazebo::msgs::WorldControl* gazebo::msgs::UserCmd::mutable_world_control()’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:621:15: error: ‘CreateMaybeMessage’ was not declared in this scope
621 | auto* p = CreateMaybeMessage<::gazebo::msgs::WorldControl>(GetArenaNoVirtual());
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:621:62: error: expected primary-expression before ‘>’ token
621 | auto* p = CreateMaybeMessage<::gazebo::msgs::WorldControl>(GetArenaNoVirtual());
| ^
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: In member function ‘void gazebo::msgs::UserCmd::set_allocated_world_control(gazebo::msgs::WorldControl*)’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:635:53: error: ‘GetOwnedMessage’ is not a member of ‘google::protobuf::internal’
635 | world_control = ::google::protobuf::internal::GetOwnedMessage(
| ^~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: In member function ‘gazebo::msgs::Wrench* gazebo::msgs::UserCmd::mutable_wrench()’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:675:15: error: ‘CreateMaybeMessage’ was not declared in this scope
675 | auto* p = CreateMaybeMessage<::gazebo::msgs::Wrench>(GetArenaNoVirtual());
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:675:56: error: expected primary-expression before ‘>’ token
675 | auto* p = CreateMaybeMessage<::gazebo::msgs::Wrench>(GetArenaNoVirtual());
| ^
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h: In member function ‘void gazebo::msgs::UserCmd::set_allocated_wrench(gazebo::msgs::Wrench*)’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd.pb.h:689:46: error: ‘GetOwnedMessage’ is not a member of ‘google::protobuf::internal’
689 | wrench = ::google::protobuf::internal::GetOwnedMessage(
| ^~~~~~~~~~~~~~~
In file included from /usr/include/gazebo-11/gazebo/msgs/MessageTypes.hh:124,
from /usr/include/gazebo-11/gazebo/msgs/msgs.hh:35,
from /usr/include/gazebo-11/gazebo/physics/Entity.hh:28,
from /usr/include/gazebo-11/gazebo/physics/Model.hh:30,
from /usr/include/gazebo-11/gazebo/physics/Actor.hh:30,
from /usr/include/gazebo-11/gazebo/physics/physics.hh:2,
from /opt/ros/noetic/include/gazebo_ros_control/robot_hw_sim.h:45,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/include/hector_quadrotor_controller/quadrotor_hardware_gazebo.h:32,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/src/quadrotor_hardware_gazebo.cpp:29:
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h: At global scope:
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h:218:41: error: ‘CachedSize’ in namespace ‘google::protobuf::internal’ does not name a type; did you mean ‘ToCachedSize’?
218 | mutable ::google::protobuf::internal::CachedSize _cached_size_;
| ^~~~~~~~~~
| ToCachedSize
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h: In member function ‘virtual gazebo::msgs::UserCmdStats* gazebo::msgs::UserCmdStats::New() const’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h:126:12: error: ‘CreateMaybeMessage’ was not declared in this scope
126 | return CreateMaybeMessage<UserCmdStats>(NULL);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h:126:43: error: expected primary-expression before ‘>’ token
126 | return CreateMaybeMessage<UserCmdStats>(NULL);
| ^
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h: In member function ‘virtual gazebo::msgs::UserCmdStats* gazebo::msgs::UserCmdStats::New(google::protobuf::Arena*) const’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h:130:12: error: ‘CreateMaybeMessage’ was not declared in this scope
130 | return CreateMaybeMessage<UserCmdStats>(arena);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h:130:43: error: expected primary-expression before ‘>’ token
130 | return CreateMaybeMessage<UserCmdStats>(arena);
| ^
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h: In member function ‘virtual int gazebo::msgs::UserCmdStats::GetCachedSize() const’:
/usr/include/gazebo-11/gazebo/msgs/user_cmd_stats.pb.h:146:44: error: ‘_cached_size_’ was not declared in this scope
146 | int GetCachedSize() const final { return _cached_size_.Get(); }
| ^~~~~~~~~~~~~
In file included from /usr/include/gazebo-11/gazebo/msgs/MessageTypes.hh:128,
from /usr/include/gazebo-11/gazebo/msgs/msgs.hh:35,
from /usr/include/gazebo-11/gazebo/physics/Entity.hh:28,
from /usr/include/gazebo-11/gazebo/physics/Model.hh:30,
from /usr/include/gazebo-11/gazebo/physics/Actor.hh:30,
from /usr/include/gazebo-11/gazebo/physics/physics.hh:2,
from /opt/ros/noetic/include/gazebo_ros_control/robot_hw_sim.h:45,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/include/hector_quadrotor_controller/quadrotor_hardware_gazebo.h:32,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/src/quadrotor_hardware_gazebo.cpp:29:
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h: At global scope:
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h:196:41: error: ‘CachedSize’ in namespace ‘google::protobuf::internal’ does not name a type; did you mean ‘ToCachedSize’?
196 | mutable ::google::protobuf::internal::CachedSize _cached_size_;
| ^~~~~~~~~~
| ToCachedSize
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h: In member function ‘virtual gazebo::msgs::Wind* gazebo::msgs::Wind::New() const’:
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h:126:12: error: ‘CreateMaybeMessage’ was not declared in this scope
126 | return CreateMaybeMessage<Wind>(NULL);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h:126:35: error: expected primary-expression before ‘>’ token
126 | return CreateMaybeMessage<Wind>(NULL);
| ^
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h: In member function ‘virtual gazebo::msgs::Wind* gazebo::msgs::Wind::New(google::protobuf::Arena*) const’:
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h:130:12: error: ‘CreateMaybeMessage’ was not declared in this scope
130 | return CreateMaybeMessage<Wind>(arena);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h:130:35: error: expected primary-expression before ‘>’ token
130 | return CreateMaybeMessage<Wind>(arena);
| ^
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h: In member function ‘virtual int gazebo::msgs::Wind::GetCachedSize() const’:
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h:146:44: error: ‘_cached_size_’ was not declared in this scope
146 | int GetCachedSize() const final { return _cached_size_.Get(); }
| ^~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h: In member function ‘gazebo::msgs::Vector3d* gazebo::msgs::Wind::mutable_linear_velocity()’:
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h:241:15: error: ‘CreateMaybeMessage’ was not declared in this scope
241 | auto* p = CreateMaybeMessage<::gazebo::msgs::Vector3d>(GetArenaNoVirtual());
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h:241:58: error: expected primary-expression before ‘>’ token
241 | auto* p = CreateMaybeMessage<::gazebo::msgs::Vector3d>(GetArenaNoVirtual());
| ^
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h: In member function ‘void gazebo::msgs::Wind::set_allocated_linear_velocity(gazebo::msgs::Vector3d*)’:
/usr/include/gazebo-11/gazebo/msgs/wind.pb.h:255:55: error: ‘GetOwnedMessage’ is not a member of ‘google::protobuf::internal’
255 | linear_velocity = ::google::protobuf::internal::GetOwnedMessage(
| ^~~~~~~~~~~~~~~
In file included from /usr/include/gazebo-11/gazebo/msgs/MessageTypes.hh:129,
from /usr/include/gazebo-11/gazebo/msgs/msgs.hh:35,
from /usr/include/gazebo-11/gazebo/physics/Entity.hh:28,
from /usr/include/gazebo-11/gazebo/physics/Model.hh:30,
from /usr/include/gazebo-11/gazebo/physics/Actor.hh:30,
from /usr/include/gazebo-11/gazebo/physics/physics.hh:2,
from /opt/ros/noetic/include/gazebo_ros_control/robot_hw_sim.h:45,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/include/hector_quadrotor_controller/quadrotor_hardware_gazebo.h:32,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/src/quadrotor_hardware_gazebo.cpp:29:
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h: At global scope:
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h:210:41: error: ‘CachedSize’ in namespace ‘google::protobuf::internal’ does not name a type; did you mean ‘ToCachedSize’?
210 | mutable ::google::protobuf::internal::CachedSize _cached_size_;
| ^~~~~~~~~~
| ToCachedSize
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h: In member function ‘virtual gazebo::msgs::WirelessNode* gazebo::msgs::WirelessNode::New() const’:
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h:125:12: error: ‘CreateMaybeMessage’ was not declared in this scope
125 | return CreateMaybeMessage<WirelessNode>(NULL);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h:125:43: error: expected primary-expression before ‘>’ token
125 | return CreateMaybeMessage<WirelessNode>(NULL);
| ^
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h: In member function ‘virtual gazebo::msgs::WirelessNode* gazebo::msgs::WirelessNode::New(google::protobuf::Arena*) const’:
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h:129:12: error: ‘CreateMaybeMessage’ was not declared in this scope
129 | return CreateMaybeMessage<WirelessNode>(arena);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h:129:43: error: expected primary-expression before ‘>’ token
129 | return CreateMaybeMessage<WirelessNode>(arena);
| ^
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h: In member function ‘virtual int gazebo::msgs::WirelessNode::GetCachedSize() const’:
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h:145:44: error: ‘_cached_size_’ was not declared in this scope
145 | int GetCachedSize() const final { return _cached_size_.Get(); }
| ^~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h: In member function ‘std::string* gazebo::msgs::WirelessNode::release_essid()’:
/usr/include/gazebo-11/gazebo/msgs/wireless_node.pb.h:281:17: error: ‘struct google::protobuf::internal::ArenaStringPtr’ has no member named ‘ReleaseNonDefaultNoArena’; did you mean ‘ClearToDefaultNoArena’?
281 | return essid_.ReleaseNonDefaultNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
| ^~~~~~~~~~~~~~~~~~~~~~~~
| ClearToDefaultNoArena
In file included from /usr/include/gazebo-11/gazebo/msgs/MessageTypes.hh:130,
from /usr/include/gazebo-11/gazebo/msgs/msgs.hh:35,
from /usr/include/gazebo-11/gazebo/physics/Entity.hh:28,
from /usr/include/gazebo-11/gazebo/physics/Model.hh:30,
from /usr/include/gazebo-11/gazebo/physics/Actor.hh:30,
from /usr/include/gazebo-11/gazebo/physics/physics.hh:2,
from /opt/ros/noetic/include/gazebo_ros_control/robot_hw_sim.h:45,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/include/hector_quadrotor_controller/quadrotor_hardware_gazebo.h:32,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/src/quadrotor_hardware_gazebo.cpp:29:
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h: At global scope:
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h:185:41: error: ‘CachedSize’ in namespace ‘google::protobuf::internal’ does not name a type; did you mean ‘ToCachedSize’?
185 | mutable ::google::protobuf::internal::CachedSize _cached_size_;
| ^~~~~~~~~~
| ToCachedSize
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h: In member function ‘virtual gazebo::msgs::WirelessNodes* gazebo::msgs::WirelessNodes::New() const’:
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h:126:12: error: ‘CreateMaybeMessage’ was not declared in this scope
126 | return CreateMaybeMessage<WirelessNodes>(NULL);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h:126:44: error: expected primary-expression before ‘>’ token
126 | return CreateMaybeMessage<WirelessNodes>(NULL);
| ^
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h: In member function ‘virtual gazebo::msgs::WirelessNodes* gazebo::msgs::WirelessNodes::New(google::protobuf::Arena*) const’:
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h:130:12: error: ‘CreateMaybeMessage’ was not declared in this scope
130 | return CreateMaybeMessage<WirelessNodes>(arena);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h:130:44: error: expected primary-expression before ‘>’ token
130 | return CreateMaybeMessage<WirelessNodes>(arena);
| ^
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h: In member function ‘virtual int gazebo::msgs::WirelessNodes::GetCachedSize() const’:
/usr/include/gazebo-11/gazebo/msgs/wireless_nodes.pb.h:146:44: error: ‘_cached_size_’ was not declared in this scope
146 | int GetCachedSize() const final { return _cached_size_.Get(); }
| ^~~~~~~~~~~~~
In file included from /usr/include/gazebo-11/gazebo/msgs/MessageTypes.hh:132,
from /usr/include/gazebo-11/gazebo/msgs/msgs.hh:35,
from /usr/include/gazebo-11/gazebo/physics/Entity.hh:28,
from /usr/include/gazebo-11/gazebo/physics/Model.hh:30,
from /usr/include/gazebo-11/gazebo/physics/Actor.hh:30,
from /usr/include/gazebo-11/gazebo/physics/physics.hh:2,
from /opt/ros/noetic/include/gazebo_ros_control/robot_hw_sim.h:45,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/include/hector_quadrotor_controller/quadrotor_hardware_gazebo.h:32,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/src/quadrotor_hardware_gazebo.cpp:29:
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h: At global scope:
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h:233:41: error: ‘CachedSize’ in namespace ‘google::protobuf::internal’ does not name a type; did you mean ‘ToCachedSize’?
233 | mutable ::google::protobuf::internal::CachedSize _cached_size_;
| ^~~~~~~~~~
| ToCachedSize
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h: In member function ‘virtual gazebo::msgs::WorldModify* gazebo::msgs::WorldModify::New() const’:
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h:125:12: error: ‘CreateMaybeMessage’ was not declared in this scope
125 | return CreateMaybeMessage<WorldModify>(NULL);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h:125:42: error: expected primary-expression before ‘>’ token
125 | return CreateMaybeMessage<WorldModify>(NULL);
| ^
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h: In member function ‘virtual gazebo::msgs::WorldModify* gazebo::msgs::WorldModify::New(google::protobuf::Arena*) const’:
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h:129:12: error: ‘CreateMaybeMessage’ was not declared in this scope
129 | return CreateMaybeMessage<WorldModify>(arena);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h:129:42: error: expected primary-expression before ‘>’ token
129 | return CreateMaybeMessage<WorldModify>(arena);
| ^
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h: In member function ‘virtual int gazebo::msgs::WorldModify::GetCachedSize() const’:
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h:145:44: error: ‘_cached_size_’ was not declared in this scope
145 | int GetCachedSize() const final { return _cached_size_.Get(); }
| ^~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h: In member function ‘std::string* gazebo::msgs::WorldModify::release_world_name()’:
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h:306:22: error: ‘struct google::protobuf::internal::ArenaStringPtr’ has no member named ‘ReleaseNonDefaultNoArena’; did you mean ‘ClearToDefaultNoArena’?
306 | return world_name_.ReleaseNonDefaultNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
| ^~~~~~~~~~~~~~~~~~~~~~~~
| ClearToDefaultNoArena
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h: In member function ‘std::string* gazebo::msgs::WorldModify::release_cloned_uri()’:
/usr/include/gazebo-11/gazebo/msgs/world_modify.pb.h:444:22: error: ‘struct google::protobuf::internal::ArenaStringPtr’ has no member named ‘ReleaseNonDefaultNoArena’; did you mean ‘ClearToDefaultNoArena’?
444 | return cloned_uri_.ReleaseNonDefaultNoArena(&::google::protobuf::internal::GetEmptyStringAlreadyInited());
| ^~~~~~~~~~~~~~~~~~~~~~~~
| ClearToDefaultNoArena
In file included from /usr/include/gazebo-11/gazebo/msgs/MessageTypes.hh:136,
from /usr/include/gazebo-11/gazebo/msgs/msgs.hh:35,
from /usr/include/gazebo-11/gazebo/physics/Entity.hh:28,
from /usr/include/gazebo-11/gazebo/physics/Model.hh:30,
from /usr/include/gazebo-11/gazebo/physics/Actor.hh:30,
from /usr/include/gazebo-11/gazebo/physics/physics.hh:2,
from /opt/ros/noetic/include/gazebo_ros_control/robot_hw_sim.h:45,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/include/hector_quadrotor_controller/quadrotor_hardware_gazebo.h:32,
from /home/asimov-hawks/pandion_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_controller_gazebo/src/quadrotor_hardware_gazebo.cpp:29:
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h: At global scope:
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:205:41: error: ‘CachedSize’ in namespace ‘google::protobuf::internal’ does not name a type; did you mean ‘ToCachedSize’?
205 | mutable ::google::protobuf::internal::CachedSize _cached_size_;
| ^~~~~~~~~~
| ToCachedSize
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h: In member function ‘virtual gazebo::msgs::WrenchStamped* gazebo::msgs::WrenchStamped::New() const’:
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:127:12: error: ‘CreateMaybeMessage’ was not declared in this scope
127 | return CreateMaybeMessage<WrenchStamped>(NULL);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:127:44: error: expected primary-expression before ‘>’ token
127 | return CreateMaybeMessage<WrenchStamped>(NULL);
| ^
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h: In member function ‘virtual gazebo::msgs::WrenchStamped* gazebo::msgs::WrenchStamped::New(google::protobuf::Arena*) const’:
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:131:12: error: ‘CreateMaybeMessage’ was not declared in this scope
131 | return CreateMaybeMessage<WrenchStamped>(arena);
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:131:44: error: expected primary-expression before ‘>’ token
131 | return CreateMaybeMessage<WrenchStamped>(arena);
| ^
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h: In member function ‘virtual int gazebo::msgs::WrenchStamped::GetCachedSize() const’:
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:147:44: error: ‘_cached_size_’ was not declared in this scope
147 | int GetCachedSize() const final { return _cached_size_.Get(); }
| ^~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h: In member function ‘gazebo::msgs::Time* gazebo::msgs::WrenchStamped::mutable_time()’:
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:250:15: error: ‘CreateMaybeMessage’ was not declared in this scope
250 | auto* p = CreateMaybeMessage<::gazebo::msgs::Time>(GetArenaNoVirtual());
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:250:54: error: expected primary-expression before ‘>’ token
250 | auto* p = CreateMaybeMessage<::gazebo::msgs::Time>(GetArenaNoVirtual());
| ^
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h: In member function ‘void gazebo::msgs::WrenchStamped::set_allocated_time(gazebo::msgs::Time*)’:
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:264:44: error: ‘GetOwnedMessage’ is not a member of ‘google::protobuf::internal’
264 | time = ::google::protobuf::internal::GetOwnedMessage(
| ^~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h: In member function ‘gazebo::msgs::Wrench* gazebo::msgs::WrenchStamped::mutable_wrench()’:
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:304:15: error: ‘CreateMaybeMessage’ was not declared in this scope
304 | auto* p = CreateMaybeMessage<::gazebo::msgs::Wrench>(GetArenaNoVirtual());
| ^~~~~~~~~~~~~~~~~~
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:304:56: error: expected primary-expression before ‘>’ token
304 | auto* p = CreateMaybeMessage<::gazebo::msgs::Wrench>(GetArenaNoVirtual());
| ^
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h: In member function ‘void gazebo::msgs::WrenchStamped::set_allocated_wrench(gazebo::msgs::Wrench*)’:
/usr/include/gazebo-11/gazebo/msgs/wrench_stamped.pb.h:318:46: error: ‘GetOwnedMessage’ is not a member of ‘google::protobuf::internal’
318 | wrench = ::google::protobuf::internal::GetOwnedMessage(
| ^~~~~~~~~~~~~~~
make[2]: *** [CMakeFiles/hector_quadrotor_controller_gazebo.dir/build.make:76: CMakeFiles/hector_quadrotor_controller_gazebo.dir/src/quadrotor_hardware_gazebo.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:2239: CMakeFiles/hector_quadrotor_controller_gazebo.dir/all] Error 2
make: *** [Makefile:146: all] Error 2
IT SAYS THAT hector_quadrotor_controller_gazebo, hector_gazebo_plugins and some other packages failed to build
On building the hector drone package, I am encountering the following Protobuf error:
I encountered the same error in multiple other projects, like this issue in PXLRoboticsLab's ardrone repo.
Kindly help me solve this version issue.
Some outputs that might be helpful:
protoc --version results in version libprotoc 3.20.1which protoc results in location /usr/bin/protoc/usr/bin/protoc --version results in version libprotoc 3.20.1I had a problem when I run roslaunch, so I have changed command in the tag to default, this solved the problem. Then, I tried changing to default to textfile However, I encounter another problem which says that it can not find the file and also give me traceback for files in the opt/ros/noetic/lib/python3/dist-packages/ (some python files). Do you know what is the problem?
The first error before changing the command:
redefining global symbol: pi
when processing file: /home/parallels/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_description/urdf/quadrotor_base.urdf.xacro
included from: /home/parallels/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_description/urdf/quadrotor.urdf.xacro
included from: /home/parallels/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_description/urdf/quadrotor.gazebo.xacro
No such file or directory: /home/parallels/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_gazebo/urdf/quadrotor_plugins.gazebo.xacro [Errno 2] No such file or directory: '/home/parallels/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_gazebo/urdf/quadrotor_plugins.gazebo.xacro'
when processing file: /home/parallels/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_description/urdf/quadrotor.gazebo.xacro
RLException: while processing /home/parallels/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_gazebo/launch/spawn_quadrotor.launch:
Invalid tag: Cannot load command parameter [robot_description]: command [['/opt/ros/noetic/lib/xacro/xacro', '/home/parallels/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_description/urdf/quadrotor.gazebo.xacro', 'base_link_frame:=/base_link', 'world_frame:=world']] returned with code [2].
Param xml is
The traceback for the exception was written to the log file
The error after changing command to default:
.. logging to /home/parallels/.ros/log/414eeecc-5620-11ec-9974-33e66f355017/roslaunch-ubuntu-linux-20-04-desktop-78810.log
Checking log directory for disk usage. This may take a while.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.
RLException: while processing /home/parallels/catkin_ws/src/hector_quadrotor_noetic/hector_quadrotor/hector_quadrotor_gazebo/launch/spawn_quadrotor.launch:
tag must have one and only one of value/textfile/binfile. The traceback for the exception was written to the log file
How did you get hector_quadrotor to hover while using teleop_twist_keyboard? As in what code did you have to change to allow this, because in the melodic version when you use teleop_twist_keyboard and hit 't' to gain altitude, once you let go, it comes back down to the ground. I understand this is because there are no commands being sent to keep it at that level, so I was wondering what code do I need to change in the melodic version to enable this. @RAFALAMAO
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.