这是我尝试运行应用程序时收到的错误消息;
Undefined symbols for architecture armv7s:
"_CLLocationCoordinate2DMake", referenced from:
-[DodgeDirectionsViewController viewDidLoad] in DodgeDirectionsViewController.o
ld: symbol(s) not found for architecture armv7s
clang: error: linker command failed with exit code 1 (use -v to see invocation)
我该如何纠正这个错误?有什么想法吗?