1.Could Not build module 'xxx'
解决:change In target setting the "Allow Non-modular Includes in Framework modules" setting to YES.
2.Use of '@import' when C++ modules are disabled, consider using -fmodules and -fcxx-modul
解决:在target-build settings - Apple Clang - Custom Compiler Flags ,将Other C++ Flags选项debug和release加上-fcxx-modules
解决:在target-build settings - Apple Clang - Language,将Compile Sources As改为Objective-C++