摘要： 今天在工程里集成了Three20,一切都很顺利，运行时却抱[UIViewController ttAddNavigatorController:]: unrecognized selector异常。经过查找资料：http://developer.apple.com/library/mac/#qa/qa1490/_index.html＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝A: Why do I get a runtime exception of "selector not recognized" when linking against an Objective-C 阅读全文