I am in the chapter about table views and on running SpeakLine the console ends up with :

2015-07-25 12:31:59.462 SpeakLine[92059:8283507] Cannot create BOOL from object <_NSControllerObjectProxy: 0x600000001960> of class _NSControllerObjectProxy

The program runs but there is n o window and the console gets this message.

Any ideas?


I can get a similar error(although not that exact error)–but only if I do something that was not covered in Chapters 1-7.