The problem about gazebo_ros_demos

asked 2020-08-19 03:05:14 -0500

HHHCMH
26 ●3 ●5 ●8

updated 2021-09-11 10:35:54 -0500

lucasw

8729 ●137 ●239 ●256 https://github.com/lucasw

I have a problem about the package gazebo_ros_demos. When I use

roslaunch rrbot_description rrbot_rviz.launch

then

roslaunch  rrbot_control rrbot_control.launch

it shows the warning:

[WARN] [1597821207.287022]: Controller Spawner couldn't find the expected controller_manager ROS interface` .

When I use

roslaunch rrbot_gazebo rrbot_world.launch

then

roslaunch rrbot_control rrbot_control.launch

it's ok.

And I compare the result of rosservice list , it shows the former one doesn't have controller_manager . That's why ?

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@HHHCMH, have you installed the needed dependencies:

sudo apt-get install ros-melodic-gazebo-ros-control
sudo apt-get install ros-melodic-gazebo-plugins
sudo apt-get install ros-melodic-joint-state-controller
sudo apt-get install ros-melodic-effort-controllers

Maybe you do not have one of these.

Weasfas ( 2020-08-20 06:12:27 -0500 )edit

Thanks for your answer. But I had installed these package at that time. And it didn't work.

HHHCMH ( 2020-08-20 06:20:31 -0500 )edit

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