Package problem

When i launch my app for my android device,it instals it on the device and working properly but when i try just to package i got this errors on log…i saw in many threads that the problem is from “maps and modes” but i have seted
my default gamemode and global default server game mode.

LogInit:Display: LogPackageName:Error: DoesPackageExist: DoesPackageExist FAILED: 'None' is not a standard unreal filename or a long path name. Reason: Path should start with a '/'
    
    UATHelper: Packaging (Android (ETC1)): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.AutomationException: Cook failed. ---> AutomationTool.AutomationException: BUILD FAILED: Failed while running Cook for C:\Users\Alex\Documents\Unreal Projects\MyProject\MyProject.uproject; see log C:\Users\Alex\AppData\Roaming\Unreal Engine\AutomationTool

Tzaks,

Try deleting your Intermediate, Saved and Config folder from your project. Keep in mind that deleting your Config folder will reset your configurations set for the project. Make sure you set those back up before packaging and shipping any games.

I’d also suggest reviewing this [AnswerHub post][1] as I believe it has important information about the deprecated errors you’re receiving.

Thanks!

4.14 Compiling warnings - Blueprint - Epic Developer Community Forums

It wos from project settings/packaging/additional asset directories to cook
I wos added 1 element with no directories,a blank element.
Everytime when you got this error you need to check everywhere if you added something with no data.

Works! I added by error a void path in the list of maps to include in the packaged build. Tahnks, man.