What do you mean your “packages folder”? Were you trying to edit the airport in ADE?.. yeah, I haven’t done that. Otherwise, like I said, I just created a MyFSProjects folder in my documents folder, and it creates your projects in there…
Anyway, as I noted, make sure the latest version is loaded, should say v20.22.8157 ALPHA (Pro): - [Ver. 00.00.8510] at the top.
And
Application 20.22.8157.21232
Engine 20.00.8096.28162
In the about page…