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API > API/Runtime > API/Runtime/CoreUObject > API/Runtime/CoreUObject/FPackageFileSummary
Description
Set the UE4 version to below the oldest loadable version. This is used when an error is encountered during serialization and we need to prevent the use of the package. When calling this make sure you log a warning with the 'LogLinker' category to inform the user of the problem.
| Name | InvalidateFileVersion |
| Type | function |
| Header File | /Engine/Source/Runtime/CoreUObject/Public/UObject/PackageFileSummary.h |
| Include Path | #include "UObject/PackageFileSummary.h" |
void InvalidateFileVersion()