Error tip: Apple mach-o Linker Error

Error tip: Apple mach-o Linker Error
Red Tip:
Command/developer/platforms/iphoneos.platform/developer/usr/bin/clang failed with exit code 1

This kind of hint often lets us not know where to go wrong, the hint that gives is not very obvious.

This error is usually caused by a link error in two sub-projects with a class of the same name.

Although the error message given is not obvious, but can be opened to find some information, so as to locate. But there is a lot of information that needs to be carefully examined, and this is the name of the variable that was found in a multitude of messages, so you can find the problem, usually your variables will be added to the prefix.

My mistake is Baidu map. A file-induced conflict. Remove, compile, and re-import.