我在做的一个项目关卡中出了问题，一打开就报错

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There is a problem with a level in the project I am doing, and an error is reported as soon as I open it, so can someone help to solve it, thank you!

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4B665C8CA9CE6DFA4B7D64AC401E2F9B
4B665C8CA9CE6DFA4B7D64AC401E2F9B1920×860 183 KB

Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/LinkerLoad.cpp] [Line: 4152] 蓝星落日阿尔法小镇_C /Game/AdvancedLocomotionV4/Levels/蓝星落日阿尔法小镇.Default__蓝星落日阿尔法小镇_C: Serial size mismatch: Got 383096, Expected 171

UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_AssetTools
UE4Editor_ContentBrowser
UE4Editor_ContentBrowser
UE4Editor_ContentBrowser
UE4Editor_Slate
UE4Editor_ContentBrowser
UE4Editor_ContentBrowser
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_ApplicationCore
UE4Editor_ApplicationCore
UE4Editor_ApplicationCore
UE4Editor_ApplicationCore
user32
user32
UE4Editor_ApplicationCore
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
kernel32
ntdll