# \[Bug\] cannot use robot description

**URL:** <https://get-help.theconstruct.ai/t/bug-cannot-use-robot-description/33477>\
**Category:** TF ROS2\
**Created:** [November 12, 2024, 2:37pm UTC](https://get-help.theconstruct.ai/t/bug-cannot-use-robot-description/33477 "2024-11-12T14:37:31Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![keir.groves](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/k/c67d28/32.png) [@keir.groves](https://get-help.theconstruct.ai/u/keir.groves)\
**Post date:** [November 12, 2024, 2:37pm UTC](https://get-help.theconstruct.ai/t/bug-cannot-use-robot-description/33477/1 "2024-11-12T14:37:31Z")

</div>

This is an error report.

* * *

**Screenshot of the error**

 ![](https://error-imgs.s3.amazonaws.com/error_image_057b6d73-0422-4d5d-9bd1-ab42f3e61065_1731422223559.png)
* * *

**Error details**

cannot use robot description

---

<div class="post-metadata">

**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:** [November 13, 2024, 9:12am UTC](https://get-help.theconstruct.ai/t/bug-cannot-use-robot-description/33477/3 "2024-11-13T09:12:18Z")

</div>

Helllo @keir.groves ,

It looks like you missed the source command that is indicated at the very beginning of the exercise:

`source /home/simulations/ros2_sims_ws/install/setup.bash`

If you run this command you shouldn’t get that error message.

---

<div class="post-metadata">

**Author:** ![system](https://get-help.theconstruct.ai/uploads/default/original/2X/9/9d3ce8305cc0d0d9b6e07d15767a6f245c526f1b.jpeg) [@system](https://get-help.theconstruct.ai/u/system)\
**Post date:** [November 18, 2024, 9:12am UTC](https://get-help.theconstruct.ai/t/bug-cannot-use-robot-description/33477/4 "2024-11-18T09:12:24Z")

</div>

This topic was automatically closed 5 days after the last reply. New replies are no longer allowed.