更新到 Xcode 5.1 后,收到编译错误:
Undefined symbols for architecture arm64:
"_OBJC_CLASS_$_LocalyticsSession", referenced from:
objc-class-ref in Analytics(LocalyticsProvider.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)