# Hello I get this error:

**URL:** <https://forums.unrealengine.com/t/hello-i-get-this-error/596271>\
**Category:** Feedback & Requests\
**Tags:** unreal-engine, crash, UE4, UE4-27, question\
**Created:** [July 3, 2022, 7:17pm UTC](https://forums.unrealengine.com/t/hello-i-get-this-error/596271 "2022-07-03T19:17:25Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![Astrotronic](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/astrotronic/32/1194566_2.png) [@Astrotronic](https://forums.unrealengine.com/u/Astrotronic)\
**Post date:** [July 7, 2022, 6:40pm UTC](https://forums.unrealengine.com/t/hello-i-get-this-error/596271/14 "2022-07-07T18:40:40Z")

</div>

Hi all,

I did a quick google for “Assertion failed: NumBytes == Strings.Num() [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Core/Private/UObject/UnrealNames.cpp] [Line: 3336]” and came across [this thread](https://forums.unrealengine.com/t/assertion-failed-numbytes-strings-num/489904).

Advice is to delete C:\Users\username\AppData\Local\UnrealEngine\5.0\Intermediate  
(You can also delete saved/intermediate folders in your projects and they will be regenerated on project launch)

Hope that helps!

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