Dynamo Will not Launch - System.ArgumentException

I am having issues when trying to open dynamo only in Revit 2021. The below happens when I try to open generative design, dynamo and dynamo player.

  • I have uninstalled and reinstalled Revit
  • Uninstalled every single Add in I have
  • Deleted all packages in the pathed folder.

Has anyone seen this before?

1 Like

We are having that issue right now also and would like a fix.