Failed to call service /gazebo_objects/get_info about gazebo-pkgs

[JenniferBuehler]

Hello,

Just a quick acknowledge that I saw this and going to look into it, I can't make it before tomorrow though. It will probably be something gone wrong in Step... could you send the output of all steps please?

Jenny

[odysseusPolytropos]

Hello Jenny,

please find the output of step 1-3 attached (I don't know how to persuade markdown not to parse the text):

Step 1
Step 2
Step 3

Thank you for looking into it!

[JenniferBuehler]

Hello,

The service is obviously not up and running, as you pointed out.

Can you send a rosparam list after Step 1 and both a rosparam list and a rosservice list after Step 2?
Make sure both steps are started in separate terminals (which I guess you did) and are not aborted.

Do you have a roscore running in a separate terminal in the background somewhere?

Jenny

[odysseusPolytropos]

Hello Jenny,

thank you for your reply. Here is the output of the commands:
rosparam listafter step 1
rosparam listafter step 2
rosservice listafter step2

I execute every step in a new terminal and they keep running. I tried both, running a fresh roscore before step 1 (after executing killall roscore) and executing the steps without a previously running roscore. I did not find any differences in terms of the erroneous behaviour.

[JenniferBuehler]

Hi,

sorry for taking so long to reply. I've been crazy busy in the last days. I've had to set up a test system again as I haven't been using this code lately. I could reproduce your error, a new mistake must have snug into the code some time in one of the last pushes: The default of load_world_plugins in jaco_on_table/jaco_on_table_gazebo_controlled.launch was set to false :( I don't know why I did that, I must have been testing something and then forgotten to set it back to true.

I've pushed the update, can you try it again?

Jenny

[odysseusPolytropos]

Hello Jenny,
thank you very much for investigating. This solves my problem. Anyway I'm not able to see any commit on jaco_on_table_gazebo_controlled.launch. Are you sure you pushed the commit?
Thank you once again,
Odysseus

[JenniferBuehler]

Hi, Huh, I thought I did! Will check when I get home. You can change it yourself meanwhile, just set the default to true :) Jenny

…

On 30 Nov 2016 09:02, "odysseusPolytropos" ***@***.***> wrote: Hello Jenny, thank you very much for investigating. This solves my problem. Anyway I'm not able to see any commit on jaco_on_table_gazebo_controlled.launch <https://github.com/JenniferBuehler/jaco-arm-pkgs/blob/master/jaco_tutorial/jaco_on_table/launch/jaco_on_table_gazebo_controlled.launch>. Are you sure you pushed the commit? Thank you once again, Odysseus — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#7 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AMP2ipIro211Ig4mJttSSeCmTW1cukLtks5rDKDqgaJpZM4K7avq> .

[Abdo1994]

Hi.
I am working on a Universal Robot but I get the same error at the same step
[ERROR] [1479977436.039658131]: Failed to call service /gazebo_objects/get_info, success flag: 0

Where should I add load_world_plugins

I am still new to ROS

Thank you

[JenniferBuehler]

From some launch file, you must launch gazebo, like this

  <include file="$(find gazebo_ros)/launch/empty_world.launch">                 
    <arg name="world_name" value="$(arg gazebo_world_file)"/>                   
    <arg name="paused" value="false"/>                                          
    <arg name="verbose" value="false"/>                                         
    <arg name="use_sim_time" value="true"/>                                     
    <arg name="gui" value="true"/>                                              
    <arg name="headless" value="false"/>                                        
    <arg name="debug" value="false"/>                                           
    <arg name="extra_gazebo_args" value="-s libgazebo_world_plugin_loader.so"/>            
  </include>                    

You must have the extra line extra_gazebo_args