Could not contact service /controller_manager/load_controller

[Kakcalu13]

Environment

• OS Version: Ubuntu 20.04
• Foxy

• Ign Citadel

  • Generally, mention all circumstances that might affect rendering capabilities:
    • [ *] desktop acceleration
      • [ *] other: Running on laptop with i7 on the local

  error log:

  
  [ign gazebo-1] [GUI] [Msg] Added plugin [Component inspector] to main window
  [ign gazebo-1] [GUI] [Wrn] [Application.cc:669] [QT] file::/ComponentInspector/Physics.qml:89:5: QML Image: Cannot open: file::/ComponentInspector/plottable_icon.svg
  [ign gazebo-1] [GUI] [Wrn] [Application.cc:669] [QT] file::/ComponentInspector/Physics.qml:89:5: QML Image: Cannot open: file::/ComponentInspector/plottable_icon.svg
  [ign gazebo-1] [GUI] [Wrn] [Application.cc:669] [QT] file::/Gazebo/GazeboDrawer.qml:178:3: QML Dialog: Binding loop detected for property "implicitHeight"
  [ros2-4] Could not contact service /controller_manager/load_controller
  [ERROR] [ros2-4]: process has died [pid 230029, exit code 1, cmd 'ros2 control load_controller --set-state start joint_state_broadcaster'].
  [INFO] [ros2-5]: process started with pid [235762]
  [ros2-5] Could not contact service /controller_manager/load_controller
  [ERROR] [ros2-5]: process has died [pid 235762, exit code 1, cmd 'ros2 control load_controller --set-state start joint_trajectory_controller'].

When I run `ros2 launch ignition_ros2_control_demos cart_example_position.launch.py`
I get the result where the controller manager isn't load. 

## Description
* Expected behavior: The controller manager should be loaded once demo starts 
* Actual behavior: Couldn't find a controller manager

## Steps to reproduce
<!-- Provide steps so we can try to reproduce this issue -->
1. source install/setup.bash
2. ros2 launch ignition_ros2_control_demos cart_example_position.launch.py
3. error exists

## Output
<!-- Provide screenshots, console logs, backtraces, and/or anything that could
be useful to us resolving this issue -->

![image](https://user-images.githubusercontent.com/65916520/131892656-13a2cd5d-7783-44e3-bf3e-ee543121356d.png)

![image](https://user-images.githubusercontent.com/65916520/131892616-52762355-a5c3-442c-a8b8-8afe36bdb662.png)

[Sleipnir164]

Hello I've got the same problem but couldn't find a solution anywhere, did you solve this error ?

[Kakcalu13]

Hello I've got the same problem but couldn't find a solution anywhere, did you solve this error ?

Hi there! Sorry this took me so long to answer. I did not see this until someone posted this in discord.

It seems like I didn't have a library installed at that time. I posted this when I was a newbie. I have a lot of experience now, so I will dig this later this evening

[kopiotrek]

Hey, did you investigate the problem?

[Kevin0573]

hi, did you solve this error? I've got the same issue in ubuntu22.04 with ros2-humble, gazebo-11

[Lalith321]

You need to install ros-foxy-gazebo-ros2-control using sudo apt-get install ros-foxy-gazebo-ros2-control. Although it solved the problem of others it solved my error partially by throwing a new warning this time.

[scybd]

Hello I've got the same problem but couldn't find a solution anywhere, did you solve this error ?

Hi there! Sorry this took me so long to answer. I did not see this until someone posted this in discord.

It seems like I didn't have a library installed at that time. I posted this when I was a newbie. I have a lot of experience now, so I will dig this later this evening

Hi, I met the same problem, could you share the method to solve it? Thanks!