objective c - XCode 4 - .xib icon is grayed out -


what mean when icon greyed out in file tree viewer?

my main problem trying navigate view view on button click method.

- (ibaction) organizemeetingbuttonpressed:(id)sender {     organizemeetingviewcontroller *viewcontroller = [[organizemeetingviewcontroller alloc] initwithnibname:@"organizemeetingview" bundle:nil];     [self.navigationcontroller pushviewcontroller:viewcontroller animated:yes]; }

this written in controller1 trying access controller 2 (organizemeetingviewcontroller). believe error in xcode connections actual view. hence question greyed out icon


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