Can't start the gazebo launch about px4-avoidance

[nicovanduijn]

You should simulate the global planner with roslaunch global_planner global_planner_stereo.launch, as the global_planner_sitl_mavros.launch is an intermediate file included by the other launch files. We have a bit of a mess with launch files, I know...

[mrivi]

@nicovanduijn I think you're getting confused with the local_planner. roslaunch global_planner global_planner_stereo.launch isn't an intermediate launch file.

@LZMHIT the error [gazebo-7] process has died sometimes happens and you need to restart the simulation.
The error above it isn't coming from avoidance or PX4.

[nicovanduijn]

@mrivi You're right, I was confusing it with mavros_sitl.launch. We really need to clean this up somehow

[henkf]

You could try starting gazebo outside ROS by calling gazebo from the command line. If that fails, your gazebo is broken, make sure you are using the version supplied by your ROS distribution.

Next, you could try starting gazebo in a blank ROS session by starting roscore, rosrun gazebo_ros gzserver and rosrun gazebo_ros gzclient in different terminals. If that fails, it is likely that your ROS environment and gazebo are incompatible.

It also looks like you are executing ROS as root, which should not be necessary and may hint at some confusion in your environment configuration.