PackagingResults:Error: Error Unknown Cook Failure
It seems like the major problem here is related to some marketplace content that you've downloaded.
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.08.12-10.38.40:205][ 0]LogPackageName:Error: DoesPackageExist: DoesPackageExist FAILED: '/Game/Unreal Engine 4 Market Place - Modular Desert Ruins/DesertRuins/data/Content/DesertRuins/Levels/lvl_showroom' is not a standard unreal filename or a long path name. Reason: Name may not contain the following characters:
Please be aware that no spaces are allowed in folder or file names that are located inside of your Content folder. You'll need to remove the spaces from the folder name "Unreal Engine 4 Market Place - Modular Desert Ruins" to be able to package. There may be other issues as Alson mentions, but this will continue to block packaging until it is fixed.
answered Aug 12 '16 at 04:51 PM
Based from what I understood in your log file, it seems that the cause is coming from your PhysicsX c++ code. This may be a code or a line of code that may not be support during executable. I also experienced this wherein when I use PIE, I have no issues but when I already packaged the problem I encounter issues and it was because of a code wherein it is not permitted to be executed in a build file.
Hope this helps you
answered Aug 12 '16 at 12:46 PM
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