# Robot does not move - Exercise 1.3 - **URL:** \ **Category:** ROS2 Manipulation Basics\ **Created:** [May 18, 2022, 12:23pm UTC](https://get-help.theconstruct.ai/t/robot-does-not-move-exercise-1-3/17394 "2022-05-18T12:23:50Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Username123](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/u/7ba0ec/32.png) [@Username123](https://get-help.theconstruct.ai/u/Username123)\ **Post date:** [May 18, 2022, 12:23pm UTC](https://get-help.theconstruct.ai/t/robot-does-not-move-exercise-1-3/17394/1 "2022-05-18T12:23:50Z")
Hi, I have a problem with the - Exercise 1.3 -. After I started moveit with roslaunch my\_moveit\_config my\_planning\_execution.launch, but the robot in the simulation does not move. The console says: [WARN] [1652875880.911320208]: Skipping virtual joint ‘fixed\_frame’ because its child frame ‘base\_link’ does not match the URDF frame ‘world’ [INFO] [1652875880.911364202]: No root/virtual joint specified in SRDF. Assuming fixed joint Do you know where the problem is? Thank you very much. ---
**Author:** ![albertoezquerro](https://get-help.theconstruct.ai/user_avatar/get-help.theconstruct.ai/albertoezquerro/32/7031_2.png) [@albertoezquerro](https://get-help.theconstruct.ai/u/albertoezquerro)\ **Post date:** [May 19, 2022, 10:33am UTC](https://get-help.theconstruct.ai/t/robot-does-not-move-exercise-1-3/17394/2 "2022-05-19T10:33:01Z")
Hello @Username123 , Well, the log messages you are showing here don’t contain any real error (there is a warning but it is normal). If things are not working, you should be getting an error message somewhere in the logs. Could you try to find this error message and share it here? Otherwise, it’s very difficult for us to help you. ---
**Author:** ![Username123](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/u/7ba0ec/32.png) [@Username123](https://get-help.theconstruct.ai/u/Username123)\ **Post date:** [May 20, 2022, 4:38am UTC](https://get-help.theconstruct.ai/t/robot-does-not-move-exercise-1-3/17394/3 "2022-05-20T04:38:54Z")
Hello @albertoezquerro, sorry I didn’t see the error message at the first time: [FATAL] [1653021363.991334266]: Parameter ‘~moveit\_controller\_manager’ not specified. This is needed to identify the plugin to use for interacting with controllers. No paths can be executed. Tank you. ---
**Author:** ![Username123](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/u/7ba0ec/32.png) [@Username123](https://get-help.theconstruct.ai/u/Username123)\ **Post date:** [May 20, 2022, 4:50am UTC](https://get-help.theconstruct.ai/t/robot-does-not-move-exercise-1-3/17394/4 "2022-05-20T04:50:43Z")
I found the misstake 😃 I did not copy and past the part for the **trajectory\_execution.launch.xml** and comment the wrong part… Thank you…