尝试将 Parse 与 X 代码和目标 C 一起使用。弹出 4 个不同的错误。建议?
Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_BFExecutor", referenced from:
objc-class-ref in Parse(BFTask+Private.o)
l_OBJC_$_CATEGORY_BFExecutor_$_Background in Parse(BFTask+Private.o)
"_OBJC_CLASS_$_BFTask", referenced from:
objc-class-ref in Parse(PSObject.o)
objc-class-ref in Parse(PFFile.o)
objc-class-ref in Parse(PFNetworkCommandRunner.o)
objc-class-ref in Parse(PFQuery.o)
objc-class-ref in Parse(PFRetryingCommandRunner.o)
objc-class-ref in Parse(PFTaskQueue.o)
objc-class-ref in Parse(PFUser.o)
...
"_OBJC_CLASS_$_BFTaskCompletionSource", referenced from:
objc-class-ref in Parse(PFObject.o)
objc-class-ref in Parse(PFCommandCache.o)
objc-class-ref in Parse(PFFile.o)
objc-class-ref in Parse(PFNetworkCommandRunner.o)
objc-class-ref in Parse(BFTask+Private.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)