UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: begin: stack for UAT
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: === Critical error: ===
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: Assertion failed: IsValid() [File:D:\UnrealEngine-4.26\UnrealEngine-4.26\Engine\Source\Runtime\Core\Public\Templates/SharedPointer.h] [Line: 890]
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)): LogWindows: Error: end: stack for UAT
PackagingResults: Error: begin: stack for UAT
PackagingResults: Error: === Critical error: ===
PackagingResults: Error: Assertion failed: IsValid() [File:D:\UnrealEngine-4.26\UnrealEngine-4.26\Engine\Source\Runtime\Core\Public\Templates/SharedPointer.h] [Line: 890]
PackagingResults: Error: end: stack for UAT
UATHelper: Packaging (Windows (64-bit)): Took 124,6038222s to run UE4Editor-Cmd.exe, ExitCode=3
UATHelper: Packaging (Windows (64-bit)): ERROR: Cook failed.
UATHelper: Packaging (Windows (64-bit)): (see D:\UnrealEngine-4.26\UnrealEngine-4.26\Engine\Programs\AutomationTool\Saved\Logs\Log.txt for full exception trace)
PackagingResults: Error: Cook failed.
UATHelper: Packaging (Windows (64-bit)): AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure)
UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
PackagingResults: Error: Unknown Cook Failure
Hi how can i fix it?