AVOSCloudSNS错误

[tapinfinity]

当添加以下语句时：
[AVOSCloudSNS setupPlatform:AVOSCloudSNSQQ withAppKey:@"1106870533" andAppSecret:@"69wJMsCLVIcRv28j" andRedirectURI:nil];

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

如果删除此不会，请问什么问题？