I get the following error messages when I moved my code from my laptop to my Mac Mini and opened it over there:
myProject is locked for editing and yo
Have you tried copying the contents like suggested in this answer?: Unable to unlock file for editing in Xcode 4?
Alternatively you could use the console to set yourself a writing permission on all the files for your xcode project:
http://www.mac-terminal.com/files-and-folders/permissions/chmod/