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Please help, Unity Package Manager Error popup.

Discussion in 'Unity Ads' started by WhosTheBoss, Mar 23, 2020.

  1. WhosTheBoss


    Jan 8, 2013
    Good day,

    I was working on a Game in Unity 2019.2.1f1. Then I upgraded my Unity to 2019.3.6f1.
    When I was opening & upgrading my game to the new Unity version. I got a warning popup saying:

    Unity Package Manager Error.
    An error occurred while resolving packages: One or more packages could not be added to local file system.
    com/ permission denied, unlink /users/myname/mygame/Library/PackageCache/'

    The popup gives me 3 options: 'Quit' 'Continue' 'Retry'
    When I 'Retry' the popup keeps showing up again and again.
    When I 'Continue' Unity opens but then my Mac crashes and shuts down. I have an iMac 2016 Model with macOS Mojave 10.14.6.

    Can someone please help me?
    I'm stuck and I can't do anything. I even went back to my previous Unity version but I keep getting the popup.
  2. sbankhead


    Unity Technologies

    Jul 27, 2014
    It looks like a permissions issues with your project. Since your not using the packman package you could open up your manifest.json file and delete the line for The real solution would be to fix your permissions on the packageCache folder if you can do that though.