Newbie here, coming across this same error when trying to package project, can’t find solution
I am simply trying to package a project that gets controlled by 2 arduinos via osc if that can give you more info…
i really dont know what to do, i dont know what to look for, and ive already googled all the errors i could find and even ask chatgpt about it, but no success… Looked thru the whole solution for some variables, played with settings, nothing worked.
i would really appreciate your help, devs <3
=== Critical error: ===
UATHelper: Empaquetage (Windows): LogWindows: Error: UATHelper: Empaquetage (Windows): LogWindows: Error: Assertion failed: bAllowNonFloat [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialDerivativeAutogen.cpp] [Line: 141]
=== Critical error: ===
PackagingResults: Error: Assertion failed: bAllowNonFloat [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\Materials\HLSLMaterialDerivativeAutogen.cpp] [Line: 141]
PackagingResults: Error: end: stack for UAT
UATHelper: Empaquetage (Windows): Took 1,454.79s to run UnrealEditor-Cmd.exe, ExitCode=3
UATHelper: Empaquetage (Windows): Cook failed.
UATHelper: Empaquetage (Windows): (see C:\Users\MyUser\AppData\Roaming\Unreal Engine\AutomationTool\Logs\W+UE_5.4\Log.txt for full exception trace)
UATHelper: Empaquetage (Windows): AutomationTool executed for 0h 24m 33s
UATHelper: Empaquetage (Windows): AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure) UATHelper: Empaquetage (Windows): BUILD FAILED
PackagingResults: Error: Unknown Cook Failure