# I'm stuck on an exercise.

**URL:** <https://tech-community.robotics.abb.com/t/im-stuck-on-an-exercise/11822>\
**Category:** Tutorials\
**Created:** [March 7, 2025, 7:38am UTC](https://tech-community.robotics.abb.com/t/im-stuck-on-an-exercise/11822 "2025-03-07T07:38:28Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![urban\_carlsson](https://avatars.discourse-cdn.com/v4/letter/u/3be4f8/32.png) [@urban\_carlsson](https://tech-community.robotics.abb.com/u/urban_carlsson)\
**Post date:** [March 7, 2025, 7:38am UTC](https://tech-community.robotics.abb.com/t/im-stuck-on-an-exercise/11822/1 "2025-03-07T07:38:28Z")

</div>

Hi  
I am doing the mechanism exercises in the Student Manual Robotstudio2.

In chapter 7.2.4 and box 49. There Mechanical unit 1 should be changed to “My\_Robot\_Mover” in the scroll list. Unfortunately there is no other option than “ROB\_1”. What could I have missed?

//Urban