# Do not understand error code Property project has no attribute

**URL:** <https://get-help.theconstruct.ai/t/do-not-understand-error-code-property-project-has-no-attribute/31367>\
**Category:** ROS Basics In 5 Days (Python)\
**Created:** [July 18, 2024, 10:36pm UTC](https://get-help.theconstruct.ai/t/do-not-understand-error-code-property-project-has-no-attribute/31367 "2024-07-18T22:36:14Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![ROxX](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/r/dfb087/32.png) [@ROxX](https://get-help.theconstruct.ai/u/ROxX)\
**Post date:** [July 19, 2024, 12:01pm UTC](https://get-help.theconstruct.ai/t/do-not-understand-error-code-property-project-has-no-attribute/31367/3 "2024-07-19T12:01:35Z")

</div>

I have attached the code. I found this old recommendation - [ROS2 Project topics problem - #8 by girishkumar.kannan](https://get-help.theconstruct.ai/t/ros2-project-topics-problem/24261/8) However using the '/cmd\_vel" did not work and ‘cmd\_vel’ does not work. Also reset the terminal using the the commands. Here is my code and error message.

 ![code pg 4](https://get-help.theconstruct.ai/uploads/default/original/2X/0/057c64fa2d81c0779cbfe6e1f6cb54d3006e8a2f.jpeg)  
 ![code pg 1](https://get-help.theconstruct.ai/uploads/default/original/2X/0/044022d8cab820431c7325e6febe62514b2c8bf1.jpeg)  
 ![code pg 3](https://get-help.theconstruct.ai/uploads/default/original/2X/5/5fc1a2de46584923c7c62e1c2cebf4f3b6461f17.jpeg)  
 ![code pg 4](https://get-help.theconstruct.ai/uploads/default/original/2X/0/057c64fa2d81c0779cbfe6e1f6cb54d3006e8a2f.jpeg)  
 ![code pg 4](https://get-help.theconstruct.ai/uploads/default/original/2X/0/057c64fa2d81c0779cbfe6e1f6cb54d3006e8a2f.jpeg)  
 ![code pg 1](https://get-help.theconstruct.ai/uploads/default/original/2X/0/044022d8cab820431c7325e6febe62514b2c8bf1.jpeg)  
 ![code pg 3](https://get-help.theconstruct.ai/uploads/default/original/2X/5/5fc1a2de46584923c7c62e1c2cebf4f3b6461f17.jpeg)

 ![error message 2](https://get-help.theconstruct.ai/uploads/default/original/2X/a/a4a1cbbdcc6fc6c520c2b9b260eb71d2e356fac9.jpeg)

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