osx - Xcode suddenly corrupted my xib file -


last thing did adding checkbox , creating outlet using assistant view. since xcode doesn't compile project, gives me error , don't know it...the document "mainmenu.xib" not opened. operation couldn’t completed. *** -[__nsarraym insertobject:atindex:]: object cannot nil.

do complete clean , rebuild of project.

also, console log indicate potential problems?

if not work , have backup, copy backup new location , see whether have same problem.

if none of above worked, have copy xib , associated .m , .h somewhere, delete them project. re-add them. can copy , paste .m , .h need remake xib start link outlets , actions.


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