hi , when I try to create something in the project window , whether it's a script, material , or anything it seems I can't! I get this error : "NullReferenceException: Object reference not set to an instance of an object" . I have to mention that it's a teamwork and I'm continueing the project and someone has emailed me this project . I have unchecked read-only of the folders . I don't get what's wrong with it!
asked Mar 01 '12 at 08:48 PM
This issue (for me anyway) was caused when I moved / copied the project folder with Unity and Monodevelopment still open. If you simply right click in the project tab space and select "reimport all" it could fix your issue.
I don't know if this will fix your issue, but it is worth a shot.
MORAL of my story: if you are going to modify, move, or do anything to a a Unity project folder you should probably shut down Monodevopment and Unity prior to doing so.
answered May 04 '12 at 07:25 PM