_BSMachError: (os/kern) invalid capability (20)
解决办法：将info.plist里面的en改为United States
2016-04-18 22:43:40.883 Friend[21119:1706977] Unknown class ViewController in Interface Builder file.
2016-04-18 22:43:45.337 Friend[21119:1706977] Can‘t find keyplane that supports type 4 for keyboard iPhone-PortraitChoco-NumberPad; using 1336863583_PortraitChoco_iPhone-Simple-Pad_Default
解决办法：将没有用到的storyboard里面的ViewController去掉引用即可
iOS _BSMachError: (os/kern) invalid capability (20)
原文：http://www.cnblogs.com/tanglimei/p/5406280.html