"_OBJC_CLASS_$_CFFramework", referenced from:

Question

Undefined symbols for architecture x86_64:
 "_OBJC_CLASS_$_CFFramework", referenced from:
     objc-class-ref in LodoSdkInterface.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

64 位机器上 不支持 OBJC_CLASS$_CFFramework,   不支持头文件中的 objc 写法，