Packaging for windows failed

Hi,

I have a problem with the packaging in UE4 with the version 4.8. Since I try to put a loading screen and try something in my Hud, it’s impossible for me to package my game and I constantly have the messsage build fail that appears in my log output. Full Output log here

So what could have caused this problem?
Thanks in advance!

There’s something about localization data for French:

LogTextLocalizationManager: The requested culture (‘fr_CA’) has no localization data; falling back to ‘en’ for localization and internationalization data.

and this is the real issue:

LogPackageName:Error: DoesPackageExist: DoesPackageExist FAILED: ‘None’ is not a standard unreal filename or a long path name. Reason: Path should start with a ‘/’

For some reason it’s trying to find a package named “None.”

Thanks a lot, I have found my problem! The Transition Map in Project Settings/Maps & Modes was empty. So that’s why it was written ‘‘None’’

You guys are the best!