PackagingResults:Error: Error Unknown Error

Hey ,

This is the error I see within your project: MainFrameActions: Packaging (Windows (64-bit)): Program.Main: ERROR: AutomationTool terminated with exception: System.ArgumentException: An item with the same key has already been added.

Please review the following AnswerHub links and see whether or not there is a solution provided for you too. If there is not, please submit new error logs for us to review.

[AnswerHub - Error 1][1] | [AnswerHub - Error 2][2]

Thanks!

Can't package game (an item with the same key has already been added) - Programming & Scripting - Epic Developer Community Forums
[2]: Program.Main: ERROR: An item with the same key has already been added - Blueprint - Epic Developer Community Forums