Packaging: Error Unknown Cook Failure, Windows 64-Bit

I really like using Unreal Engine Version 4.9.2, but when i try to package project for windows 64-Bit it keeps giving me the Error Unknown Cook Failure.
I dont know what to do.
Can someone plzz help me fix this?
I would be really thankfull.

Look in above the log if there any more descriptive errors

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