Strange behaviour while cooking

Hi,
I’m trying to cook my project for a time now, but get errors that I can’t resolve, as I have no idea where they come from.

MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:231][  0]LogInit:Display: Warning/Error Summary
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:232][  0]LogInit:Display: ---------------------
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:232][  0]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 '/'
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:234][  0]LogInit:Display: LogLinker:Warning: Can't find file '/Game/PuzzleBP/Tutorial/Part1-Overview'
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:235][  0]LogInit:Display: LogUObjectGlobals:Warning: Failed to load '/Game/PuzzleBP/Tutorial/Part1-Overview': Can't find file '/Game/PuzzleBP/Tutorial/Part1-Overview'
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:236][  0]LogInit:Display: LogUObjectGlobals:Warning: Failed to find object 'Class /Game/PuzzleBP/Tutorial/Part1-Overview.Part1-Overview_C'
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:238][  0]LogInit:Display: LogLinker:Warning: Can't find file '/Game/PuzzleBP/Tutorial/Part2-BlockBlueprint'
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:241][  0]LogInit:Display: LogUObjectGlobals:Warning: Failed to load '/Game/PuzzleBP/Tutorial/Part2-BlockBlueprint': Can't find file '/Game/PuzzleBP/Tutorial/Part2-BlockBlueprint'
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:243][  0]LogInit:Display: LogUObjectGlobals:Warning: Failed to find object 'Class /Game/PuzzleBP/Tutorial/Part2-BlockBlueprint.Part2-BlockBlueprint_C'
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:245][  0]LogInit:Display: CookResults:Warning: Warning Unable to find package for cooking None
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:246][  0]LogInit:Display: LogCook:Warning: Unable to find package for cooking None
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:246][  0]LogInit:Display: LogUObjectGlobals:Warning: Failed to find object 'Object /Game/PuzzleBP/Tutorial/Part1-Overview.Part1-Overview_C'
MainFrameActions: Cooking (Windows): UE4Editor-Cmd: [2015.11.16-10.13.12:248][  0]LogInit:Display: LogUObjectGlobals:Warning: Failed to find object 'Object /Game/PuzzleBP/Tutorial/Part2-BlockBlueprint.Part2-BlockBlueprint_C'

/Game/PuzzleBP/

PuzzleBP is, as far as I remember, the name of one of the delivered packages with UE4. But, what does this do in my project and how do I get rid of it?

DoesPackageExist FAILED: ‘None’ is not a standard unreal filename

And a package of name “None”, sure that can’t exist as I never inserted or deleted this. How to find out at what point this stands and how to delete this link?

Many Thanks.

Best

Tigger

DoesPackageExist FAILED: ‘None’ is not a standard unreal filename
is solved. Needed to set Sever Map. strange. oO

hmm… release and clicked packaging options one time - so that they are at the same and then cooked again… strange.