I checked out the latest source codes from trunk last night, I tried to built it under Leopard with XCode 3. 0, but I think there are something missed from the reposatory, I can build cog, but when debugging, I was told that FileTreeController is not available which is refered the MainMenu.nib.
What's the problem? The file is missing from SVN or the project format is different with XCode 3.0?