# Prim path problem

**URL:** <https://forums.developer.nvidia.com/t/prim-path-problem/273054>\
**Category:** Synthetic Data Generation (SDG)\
**Tags:** synthetic-data\
**Created:** [November 16, 2023, 9:56am UTC](https://forums.developer.nvidia.com/t/prim-path-problem/273054 "2023-11-16T09:56:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![zourui2020](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@zourui2020](https://forums.developer.nvidia.com/u/zourui2020)\
**Post date:** [November 16, 2023, 9:56am UTC](https://forums.developer.nvidia.com/t/prim-path-problem/273054/1 "2023-11-16T09:56:57Z")

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File “D:\omniverse\isaac\_sim-2022.2.1\standalone\_examples\replicator\offline\_pose\_generation\my\_test.py”, line 641, in   
test=args.test,  
Exception: Prim path expression /World/textured/mesh is invalid, a prim matching the expression needs to created before wrapping it as view

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**Author:** ![zourui2020](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@zourui2020](https://forums.developer.nvidia.com/u/zourui2020)\
**Post date:** [November 16, 2023, 10:03am UTC](https://forums.developer.nvidia.com/t/prim-path-problem/273054/2 "2023-11-16T10:03:42Z")

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I meet this problem when i am using offline\_pose\_generation.py [offline\_pose\_estimation](https://docs.omniverse.nvidia.com/isaacsim/latest/replicator_tutorials/tutorial_replicator_offline_pose_estimation.html). I don’t know why the Prim path expression /World/textured/mesh is invalid, can anyone help me.

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<div class="post-metadata">

**Author:** ![ahaidu](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/ahaidu/32/177510_2.png) [@ahaidu](https://forums.developer.nvidia.com/u/ahaidu)\
**Post date:** [November 21, 2023, 8:49am UTC](https://forums.developer.nvidia.com/t/prim-path-problem/273054/3 "2023-11-21T08:49:48Z")

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Hi there, it seems you are using your own script (`my_test.py`), can you provide a short version of it where the issue occures? Can you check if you have your custom path in stage?