Apple Mach-O Linker Error Undefined symbols for architecture armv7: "_OBJC_CLASS_$_CPLTableViewController", referenced from: objc-class-ref in CPLCompanyViewController.o ld: symbol(s) not found for architecture armv7 collect2: ld returned 1 exit statuscomes up at unexpected times and is always difficult to fix, therefore I'm gonna dedicate some time to figuring out the details and publishing a post about it.
Fix #1 Close the project, Xcode, turn off your Mac & wait a few days. After fiddling around with deleting and the reimporting a variety of suspect files (this was suggested online). I shut down my laptop & tryed it again the next day. No Mach-O error, go figger!