# How can I fix "Module Validation Failed"

**URL:** <https://forums.unrealengine.com/t/how-can-i-fix-module-validation-failed/1176251>\
**Category:** Programming & Scripting\
**Tags:** unreal-engine, bug-report, question\
**Created:** [May 23, 2023, 7:47pm UTC](https://forums.unrealengine.com/t/how-can-i-fix-module-validation-failed/1176251 "2023-05-23T19:47:36Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![KDDakota](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@KDDakota](https://forums.unrealengine.com/u/KDDakota)\
**Post date:** [May 23, 2023, 7:47pm UTC](https://forums.unrealengine.com/t/how-can-i-fix-module-validation-failed/1176251/1 "2023-05-23T19:47:36Z")

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This error keeps popping up when I try to test map. Out of the blue, one second I can check in game process and the next I have this message. Any work arounds?

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**Author:** ![3dRaven](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/3draven/32/906552_2.png) [@3dRaven](https://forums.unrealengine.com/u/3dRaven)\
**Post date:** [May 23, 2023, 9:30pm UTC](https://forums.unrealengine.com/t/how-can-i-fix-module-validation-failed/1176251/2 "2023-05-23T21:30:20Z")

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Close your project, go to the epic launcher, go to Unreal Engine =\> Library  
find your engine version and pick verify  
 ![verify](https://d3kjluh73b9h9o.cloudfront.net/original/4X/1/7/1/17186cdb57e438c84be2653cb15bc94fd49dea68.png)

Something might have been corrupted in the engine modules.

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<div class="post-metadata">

**Author:** ![KDDakota](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@KDDakota](https://forums.unrealengine.com/u/KDDakota)\
**Post date:** [May 23, 2023, 9:46pm UTC](https://forums.unrealengine.com/t/how-can-i-fix-module-validation-failed/1176251/3 "2023-05-23T21:46:37Z")

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It worked! You are my Hero thanks!

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**Author:** ![3dRaven](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/3draven/32/906552_2.png) [@3dRaven](https://forums.unrealengine.com/u/3dRaven)\
**Post date:** [May 23, 2023, 9:48pm UTC](https://forums.unrealengine.com/t/how-can-i-fix-module-validation-failed/1176251/4 "2023-05-23T21:48:14Z")

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Congrats. Happy further dev’ing.

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**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\
**Post date:** [June 22, 2023, 9:49pm UTC](https://forums.unrealengine.com/t/how-can-i-fix-module-validation-failed/1176251/5 "2023-06-22T21:49:08Z")

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