报错：

symbol dyld_stub_binding_helper not found, normally in crt1.o/dylib1.o/bundle1.o for architecture i386

解决：

Project －> Targets －> General －> Deployment Info －> Deployment Target －>选择7.0

参考：

http://stackoverflow.com/questions/19157977/ld-symbol-dyld-stub-binding-helper-not-found-normally-in-crt1-o-dylib1-o-bundl