# Problem with animation (implementing knowledge from ROS Navigation in 5 Days)

**URL:** <https://get-help.theconstruct.ai/t/problem-with-animation-implementing-knowledge-from-ros-navigation-in-5-days/17881>\
**Category:** ROS Navigation In 5 Days\
**Created:** [June 18, 2022, 11:36am UTC](https://get-help.theconstruct.ai/t/problem-with-animation-implementing-knowledge-from-ros-navigation-in-5-days/17881 "2022-06-18T11:36:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![aitameuradlan2adcde5de6574041](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/a/4af34b/32.png) [@aitameuradlan2adcde5de6574041](https://get-help.theconstruct.ai/u/aitameuradlan2adcde5de6574041)\
**Post date:** [June 18, 2022, 11:36am UTC](https://get-help.theconstruct.ai/t/problem-with-animation-implementing-knowledge-from-ros-navigation-in-5-days/17881/1 "2022-06-18T11:36:53Z")

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![Screenshot from 2022-06-18 12-28-50](https://get-help.robotigniteacademy.com/uploads/default/original/2X/8/802ae5d980ac9e93943f2aace17aff858a20e51f.jpeg)  
Hello guys,

I’m having an issue with my animation; essentially, when I generated an animated person, as you can see here, the LIDAR cannot read the person moving; you can see from the image that the laser has recognised two persons, but there is nothing in the between. Does anyone have an idea how to solve this ?

Thanks again for your time.

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**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:** [June 20, 2022, 8:46am UTC](https://get-help.theconstruct.ai/t/problem-with-animation-implementing-knowledge-from-ros-navigation-in-5-days/17881/2 "2022-06-20T08:46:07Z")

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Hello @aitameuradlan2adcde5de6574041 ,

It’s very hard to tell without being able to test… Could you create this project in a rosject so that you can share it with us easily for testing? I’ve found some references to similar issues but they remain unanswered, like [here](https://answers.gazebosim.org//question/26933/dynamic-objects-in-gazebo-does-not-produce-laser-scan/)

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**Author:** ![aitameuradlan2adcde5de6574041](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/a/4af34b/32.png) [@aitameuradlan2adcde5de6574041](https://get-help.theconstruct.ai/u/aitameuradlan2adcde5de6574041)\
**Post date:** [June 21, 2022, 9:03pm UTC](https://get-help.theconstruct.ai/t/problem-with-animation-implementing-knowledge-from-ros-navigation-in-5-days/17881/3 "2022-06-21T21:03:24Z")

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I solved the problem, it was by introducing collision to the actor in the world file.

Thank you,

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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:** [July 1, 2022, 9:03pm UTC](https://get-help.theconstruct.ai/t/problem-with-animation-implementing-knowledge-from-ros-navigation-in-5-days/17881/4 "2022-07-01T21:03:52Z")

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