Hi,
We’ve been using the Export Package (with dependencies) function to allow us to bundle up changes that have been made to our game… for example, we’ll bundle up the MainMenu scene into a package.
When we come to import the package, it works for one other person (using the free version of Unity), but doesn’t for another (using the Pro version). The person exporting is also using the free version.
Is there a known problem exporting from a free version and importing to pro…? Or is there something else going on here…?
How do others manage games where multiple people can be working on the same project?
Bob
Many people get an asset server license or use an external version control program such as subversion.
http://unity3d.com/support/documentation/Manual/ExternalVersionControlSystemSupport.html
But, that is Pro only. Sorry 
Thanks for your quick answer.
One more quick question… the “Assets” and “Library” folders… I’ve been assuming that we can periodically just delete the Library folder and, on startup, Unity would simply recreate it for us from our Assets…? Is that the case?
I just ask because I just did that… it spent quite a while starting up… and then, when it was ready, all my scenes looked empty and had missing links…?
Deleting the Library folder is probably the worst thing you can do in Unity. If you haven’t emptied your trash yet you should put it back where it was. The Library folder contains all the meta data for your project.