Can't package project at all

Development Platform & Builds
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1

Using Unreal 5.6.0, I started a project and it packaged normally for a while, but then, I started getting errors. I uninstalled and reinstalled the engine and now it’s gotten to where I can’t package at all. If I package for x64(this system) or arm64 or arm64ec, it crashes, and if I try the project default, it just gives me “unknown error”. I’m wondering if the two are related, since in the case of the former, I get this in the summary:
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000020

UnrealEditor_TurnkeySupport
UnrealEditor_TurnkeySupport
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
user32
user32
UnrealEditor_ApplicationCore
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

With the default platforms, I get this in the output log:
LogWindows: Failed to load ‘WinPixGpuCapturer.dll’ (GetLastError=126)
MapCheck: Map check complete: 0 Error(s), 0 Warning(s), took 0.062ms to complete.
UATHelper: Packaging (Windows): Compile [x64] SharedPCH.Core.Project.ValApi.ValExpApi.Cpp20.cpp: Exited with error code -1 . The build will fail.
UATHelper: Packaging (Windows): Resource Default.rc2: Exited with error code -1 . The build will fail.
INES=0 /DWITH_PROCESS_PRIORITY_CONTROL=0 /DUBT_MODULE_MANIFEST=“UnrealGame.modules” /DUBT_MODULE_MANIFEST_DEBUGGAME=“UnrealGame-Win64-DebugGame.modules” /DUBT_COMPILED_PLATFORM=Win64 /DUBT_COMPILED_TARGET=Game /DUE_APP_NAME=“UnrealGame” /DUE_WARNINGS_AS_ERRORS=0 /DUE_ENGINE_DIRECTORY=“../../../../../../../../Program Files/Epic Games/UE_5.6/Engine/” /DFORCE_ANSI_ALLOCATOR=0 /DUSE_MALLOC_BINNED2=1 /DUSE_MALLOC_BINNED3=0 /DNDIS_MINIPORT_MAJOR_VERSION=0 /DWIN32=1 /D_WIN32_WINNT=0x0601 /DWINVER=0x0601 /DPLATFORM_WINDOWS=1 /DPLATFORM_MICROSOFT=1 /DOVERRIDE_PLATFORM_HEADER_NAME=Windows /DRHI_RAYTRACI
UATHelper: Packaging (Windows): Result: Failed (OtherCompilationError)
PackagingResults: Error: Unknown Error

Any help?

3

Okay. So is it possible to retrieve it? Because I googled it and the suggestions for Visual Studio I saw didn’t work.

4

I had this error while cook my project when I upgraded to 5.6. I have already tried different branches from github - ue5main(5.7), dev5.6, 5.6. release - they all produce the same result. At the same time, everything builds perfectly in 5.3, 5.4 and 5.5. I have already done a full validation of the project, fix upped all redirects. but the error EXCEPTION_ACCESS_VIOLATION always pops up.