iMovie export error
Running the latest version of Lion and Imovie 9.0.4
I keep getting the following error. I don't know what file is causing the trouble. i have everything else closed while compiling the movie. None of the files I am aware of are copyrighted. I am using video shot from Go Pro cameras along with some still photos that show no copyright information in Aperature. Also music from my itunes library Unfortunately I do not get a specific error code listed in the dialouge box
"The project could not be prepared for publishing because an error occurred. (File already open with with write permission)"
MacBook, Mac OS X (10.7.2)