I have just upgraded from xcode 6.2 to 6.4 and now none of my storyboards or xibs will open and xcode just crashes.
Anyone experiencing the same thing ???
Sorry you're having an issue. Can you please file a bug at http://bugreport.apple.com, attach related Xcode and ibtool crash logs from ~/Library/Logs/DiagnosticReports, and include the bug ID in a reply? Is this specific to iOS or OS X storyboards, or both?
i have exactly this problem... have you installed Xcode 7 ?