UE4 Packaging failed!

Development Platform & Builds
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1

This is my output log. This is the first time I tried to export it as Windows 64 bit.

UATHelper: Packaging (Windows (64-bit)):   LogThreadingWindows: Error: Runnable thread PoolThread 25 crashed.
UATHelper: Packaging (Windows (64-bit)):   LogThreadingWindows: Error: Runnable thread PoolThread 29 crashed.
UATHelper: Packaging (Windows (64-bit)):   LogThreadingWindows: Error: Runnable thread PoolThread 24 crashed.
UATHelper: Packaging (Windows (64-bit)):   LogThreadingWindows: Error: Runnable thread PoolThread 18 crashed.
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: begin: stack for UAT
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: HandleError re-entered.
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: === Critical error: ===
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: d.
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: .
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: le thread TaskGraphThreadHP 19 crashed.
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: d TaskGraphThreadHP 16 crashed.
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: ted)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: ed)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: d)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: eason: Win RequestExit; note: exit was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: ason: Win RequestExit; note: exit was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: isc::RequestExit(1)
UATHelper: Packaging (Windows (64-bit)):   LogThreadingWindows: Error: eason: Win RequestExit; note: exit was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: it requested (reason: Win RequestExit; note: exit was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: thread TaskGraphThreadHP 27 crashed.
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: isc::RequestExit(1)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: e exit requested (reason: Win RequestExit; note: exit was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: : Win RequestExit; note: exit was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error:  exit was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: mMisc::RequestExit(1)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: kGraphThreadHP 25 crashed.
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: uestExit(1)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: t was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: .
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: exit requested (reason: Win RequestExit; note: exit was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: ady requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: dy requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: ead TaskGraphThreadHP 22 crashed.
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: eError re-entered.
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: stExit(1)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: : Win RequestExit; note: exit was already requested)
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: dy requested)
PackagingResults: Error: Runnable thread PoolThread 25 crashed.
PackagingResults: Error: Runnable thread PoolThread 29 crashed.
PackagingResults: Error: Runnable thread PoolThread 24 crashed.
PackagingResults: Error: Runnable thread PoolThread 18 crashed.
PackagingResults: Error: begin: stack for UAT
PackagingResults: Error: HandleError re-entered.
PackagingResults: Error: === Critical error: ===
PackagingResults: Error: d.
PackagingResults: Error: .
PackagingResults: Error: le thread TaskGraphThreadHP 19 crashed.
PackagingResults: Error: d TaskGraphThreadHP 16 crashed.
PackagingResults: Error: ted)
PackagingResults: Error: ed)
PackagingResults: Error: d)
PackagingResults: Error: eason: Win RequestExit; note: exit was already requested)
PackagingResults: Error: ason: Win RequestExit; note: exit was already requested)
PackagingResults: Error: isc::RequestExit(1)
PackagingResults: Error: eason: Win RequestExit; note: exit was already requested)
PackagingResults: Error: already requested)
PackagingResults: Error: already requested)
PackagingResults: Error: it requested (reason: Win RequestExit; note: exit was already requested)
PackagingResults: Error: thread TaskGraphThreadHP 27 crashed.
PackagingResults: Error: isc::RequestExit(1)
PackagingResults: Error: e exit requested (reason: Win RequestExit; note: exit was already requested)
PackagingResults: Error: : Win RequestExit; note: exit was already requested)
PackagingResults: Error:  exit was already requested)
PackagingResults: Error: mMisc::RequestExit(1)
PackagingResults: Error: kGraphThreadHP 25 crashed.
PackagingResults: Error: uestExit(1)
PackagingResults: Error: t was already requested)
PackagingResults: Error: .
PackagingResults: Error: exit requested (reason: Win RequestExit; note: exit was already requested)
PackagingResults: Error: ady requested)
PackagingResults: Error: dy requested)
PackagingResults: Error: ead TaskGraphThreadHP 22 crashed.
PackagingResults: Error: eError re-entered.
PackagingResults: Error: stExit(1)
PackagingResults: Error: : Win RequestExit; note: exit was already requested)
PackagingResults: Error: dy requested)
UATHelper: Packaging (Windows (64-bit)):   LogThreadingWindows: Error: Runnable thread TaskGraphThreadHP 14 crashed.
PackagingResults: Error: Runnable thread TaskGraphThreadHP 14 crashed.
UATHelper: Packaging (Windows (64-bit)): Took 56.1110516s to run UE4Editor-Cmd.exe, ExitCode=-2147483645
UATHelper: Packaging (Windows (64-bit)): ERROR: Cook failed.
UATHelper: Packaging (Windows (64-bit)):        (see C:\Users\neman\AppData\Roaming\Unreal Engine\AutomationTool\Logs\D+Programs+UE_4.24\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
2

Package an empty firstpersondemo project and post the result here !

3

I migrated assets into new project, copied settings and inputs and everything, tried to package it a few times, after getting errors every time, it showed some weird error and all my programs on PC that were running went black and after that it packaged successfully. Thank you for wanting to help.