# \[Bug\] exercise\_5\_1

**URL:** <https://get-help.theconstruct.ai/t/bug-exercise-5-1/28423>\
**Category:** ROS Basics In 5 Days (Python)\
**Created:** [January 16, 2024, 1:13pm UTC](https://get-help.theconstruct.ai/t/bug-exercise-5-1/28423 "2024-01-16T13:13:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Celianthe](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/c/779978/32.png) [@Celianthe](https://get-help.theconstruct.ai/u/Celianthe)\
**Post date:** [January 16, 2024, 1:13pm UTC](https://get-help.theconstruct.ai/t/bug-exercise-5-1/28423/1 "2024-01-16T13:13:34Z")

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This is an error report.

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**Screenshot of the error**

 ![](https://get-help.robotigniteacademy.com/uploads/default/original/2X/9/9bb0d9d8f800af898c3fd46ec25d139f835e3b1b.png)
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**Error details**

i can't launch the exercise 5.1. please can you help me? I've upload a screenshot.

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**Author:** ![bayodesegun](https://get-help.theconstruct.ai/user_avatar/get-help.theconstruct.ai/bayodesegun/32/10684_2.png) [@bayodesegun](https://get-help.theconstruct.ai/u/bayodesegun)\
**Post date:** [January 17, 2024, 10:19am UTC](https://get-help.theconstruct.ai/t/bug-exercise-5-1/28423/3 "2024-01-17T10:19:32Z")

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It seems you have a typo in your launch file definition - a dot after the package name.

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**Author:** ![system](https://get-help.theconstruct.ai/uploads/default/original/2X/9/9d3ce8305cc0d0d9b6e07d15767a6f245c526f1b.jpeg) [@system](https://get-help.theconstruct.ai/u/system)\
**Post date:** [January 22, 2024, 10:20am UTC](https://get-help.theconstruct.ai/t/bug-exercise-5-1/28423/4 "2024-01-22T10:20:23Z")

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