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

I’m using 4.14 to build a project and I get the above error. My game mode is already set in ‘Default Server Game Mode’, but I’m still getting the error.

Attaching the cook log

116626-cook-2016.11.28-15.52.17.txt (581 KB)

Hey ,

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

Hey ,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!

Thanks. This fixed my problems.