Why I can't open my project and how to fix it?

Development Getting Started & Setup
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1

Hello. I’m getting this error when I’m trying to run my project:

LoginId:49ca74ae4dcf131acf91acadd9307151
EpicAccountId:c3171f26574e494e95ecdcaf785533ee

Assertion failed: IsValid() [File:D:\build++UE5\Sync\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h] [Line: 1032]

UnrealEditor_Core
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_Kismet
UnrealEditor_Kismet
UnrealEditor_Kismet
UnrealEditor_EngineAssetDefinitions
UnrealEditor_AssetTools
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_NavigationSystem
UnrealEditor_NavigationSystem
UnrealEditor_NavigationSystem
UnrealEditor_Engine
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_Core
UnrealEditor_Engine
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

I can fix that by deleting “Epic” folder in Program Data, but in that case Epic Games Launcher can’t see installed engines and I don’t know how I can make it found them. What can I do to fix this problem?

2

what did you delete?

3

Um, nothing. I just worked on project yesterday and everything was fine, but today it’s just can’t run. I CAN delete Epic folder from program data (get this solution here) but not sure if it works, because launcher can’t find any installed engines.

4

The usual cache culprits are the following folders in the project directory:
Binaries, Intermediate, Saved, DerivedDataCache

Did you try deleting them and reopen your project?
Also, you might want to check the .uproject file for any added plugins that might be causing the issue, could you share a snippet of the enabled plugins?

5

Yes, it worked for me, thank you! Seems like I have broken asset, so now I need to find it somehow…

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