Hi we are running into an issue were we cant package and of our projects for windows using Unreal Engine 5.3.2. We haven’t changed anything on our end, this issue sparked up yesterday. This issue doesn’t occur in UE 5.4+ however we aren’t ready to move to this version.
Here are the build logs:
UATHelper: Packaging (Windows): LogOutputDevice: Warning:
UATHelper: Packaging (Windows): Script Stack (0 frames) :
UATHelper: Packaging (Windows): LogWindows: Error: appError called: Assertion failed: CurrentApplication.IsValid() [File:D:\build++UE5\Sync\LocalInstall\Engine\Source\Runtime\Slate\Public\Framework\Application\SlateApplication.h] [Line: 255]
UATHelper: Packaging (Windows): LogWindows: Error: begin: stack for UAT
UATHelper: Packaging (Windows): LogWindows: Error: === Critical error: ===
UATHelper: Packaging (Windows): LogWindows: Error:
UATHelper: Packaging (Windows): LogWindows: Error: Assertion failed: CurrentApplication.IsValid() [File:D:\build++UE5\Sync\LocalInstall\Engine\Source\Runtime\Slate\Public\Framework\Application\SlateApplication.h] [Line: 255]
UATHelper: Packaging (Windows): LogWindows: Error:
UATHelper: Packaging (Windows): LogWindows: Error:
UATHelper: Packaging (Windows): LogWindows: Error:
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x000001988423ad96 UnrealEditor-Fab.dll!FFabBrowser::RegisterSlateStyle() [D:\build++UE5\Sync\LocalBuilds\Fab\0.0.1\HostProject\Plugins\Fab\Source\Fab\Private\FabBrowser.cpp:98]
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x000001988424725a UnrealEditor-Fab.dll!FFabModule::StartupModule() [D:\build++UE5\Sync\LocalBuilds\Fab\0.0.1\HostProject\Plugins\Fab\Source\Fab\Private\FabModule.cpp:35]
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ffb11bb5954 UnrealEditor-Core.dll!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ffb899887ee UnrealEditor-Projects.dll!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ffb899a56c3 UnrealEditor-Projects.dll!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ffb8998801a UnrealEditor-Projects.dll!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ff6f8b92591 UnrealEditor-Cmd.exe!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ff6f8b9634f UnrealEditor-Cmd.exe!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ff6f8b8cfb6 UnrealEditor-Cmd.exe!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ff6f8b8d37a UnrealEditor-Cmd.exe!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ff6f8b90854 UnrealEditor-Cmd.exe!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ff6f8ba6984 UnrealEditor-Cmd.exe!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ff6f8ba8eb6 UnrealEditor-Cmd.exe!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error: [Callstack] 0x00007ffbd7567374 KERNEL32.DLL!UnknownFunction
UATHelper: Packaging (Windows): LogWindows: Error:
UATHelper: Packaging (Windows): LogWindows: Error: end: stack for UAT
PackagingResults: Error: appError called: Assertion failed: CurrentApplication.IsValid() [File:D:\build++UE5\Sync\LocalInstall\Engine\Source\Runtime\Slate\Public\Framework\Application\SlateApplication.h] [Line: 255]
PackagingResults: Error: begin: stack for UAT
PackagingResults: Error: === Critical error: ===
PackagingResults: Error: Assertion failed: CurrentApplication.IsValid() [File:D:\build++UE5\Sync\LocalInstall\Engine\Source\Runtime\Slate\Public\Framework\Application\SlateApplication.h] [Line: 255]
PackagingResults: Error: [Callstack] 0x000001988423ad96 UnrealEditor-Fab.dll!FFabBrowser::RegisterSlateStyle() [D:\build++UE5\Sync\LocalBuilds\Fab\0.0.1\HostProject\Plugins\Fab\Source\Fab\Private\FabBrowser.cpp:98]
PackagingResults: Error: [Callstack] 0x000001988424725a UnrealEditor-Fab.dll!FFabModule::StartupModule() [D:\build++UE5\Sync\LocalBuilds\Fab\0.0.1\HostProject\Plugins\Fab\Source\Fab\Private\FabModule.cpp:35]
PackagingResults: Error: [Callstack] 0x00007ffb11bb5954 UnrealEditor-Core.dll!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ffb899887ee UnrealEditor-Projects.dll!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ffb899a56c3 UnrealEditor-Projects.dll!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ffb8998801a UnrealEditor-Projects.dll!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ff6f8b92591 UnrealEditor-Cmd.exe!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ff6f8b9634f UnrealEditor-Cmd.exe!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ff6f8b8cfb6 UnrealEditor-Cmd.exe!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ff6f8b8d37a UnrealEditor-Cmd.exe!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ff6f8b90854 UnrealEditor-Cmd.exe!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ff6f8ba6984 UnrealEditor-Cmd.exe!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ff6f8ba8eb6 UnrealEditor-Cmd.exe!UnknownFunction
PackagingResults: Error: [Callstack] 0x00007ffbd7567374 KERNEL32.DLL!UnknownFunction
PackagingResults: Error: end: stack for UAT
UATHelper: Packaging (Windows): Took 8.28s to run UnrealEditor-Cmd.exe, ExitCode=3
UATHelper: Packaging (Windows): Cook failed.
UATHelper: Packaging (Windows): (see C:\Users\Administrator\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.3\Log.txt for full exception trace)
UATHelper: Packaging (Windows): AutomationTool executed for 0h 0m 10s
UATHelper: Packaging (Windows): AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure)
UATHelper: Packaging (Windows): BUILD FAILED
PackagingResults: Error: Unknown Cook Failure
LogDerivedDataCache: D:/Scratch/Unreal Cache: Maintenance finished in +00:02:40.869 and deleted 0 files with total size 0 MiB and 212 empty folders. Scanned 86742 files in 79757 folders with total size 21333 MiB.
LogEOSSDK: LogEOS: Updating Product SDK Config, Time: 316.998871
LogEOSSDK: LogEOS: SDK Config Product Update Request Completed - No Change
LogEOSSDK: LogEOS: ScheduleNextSDKConfigDataUpdate - Time: 317.240448, Update Interval: 313.101593