报以下错误

error: Invalid bitcode signature

clang: error: linker command failed with exit code 1 (use -v to see invocation)

Apple Mach-O Linker (ld) Error Group 

clang: error: linker command failed with exit code 1 (use -v to see invocation)

解决方案

Products ---->***.app --->show in find----> 往回找到DerivedData文件夹，刪除DerivedData文件夹

重新Run，红点消失...success

http://blog.csdn.net/kongdeqin/article/details/70243034