Estou recebendo esse erro ao vincular o login do Google sem usar cápsulas de cacau. Mencionei muitas soluções aqui, mas nenhuma delas resolveu meu problema. por favor, me guie através de uma solução adequada.

Undefined symbols for architecture x86_64:
"_GSDK_NSClassFromString", referenced from:
  l010 in GoogleSignIn(GIDSignIn.o)
  l059 in GoogleSignIn(GIDSignIn.o)
"_OBJC_CLASS_$_GSDK_GTMOAuth2Authentication", referenced from:
  objc-class-ref in GoogleSignIn(GIDSignIn.o)
  objc-class-ref in GoogleSignIn(GIDAuthentication.o)
"_OBJC_CLASS_$_GSDK_GTMOAuth2Keychain", referenced from:
  objc-class-ref in GoogleSignIn(GIDSignIn.o)
"_OBJC_CLASS_$_GSDK_GTMOAuth2SignIn", referenced from:
  objc-class-ref in GoogleSignIn(GIDSignIn.o)
  objc-class-ref in GoogleSignIn(GIDAuthentication.o)
"_OBJC_CLASS_$_GSDK_GTMOAuth2ViewControllerTouch", referenced from:
  objc-class-ref in GoogleSignIn(GIDSignIn.o)
"_OBJC_CLASS_$_GSDK_GTMSessionFetcher", referenced from:
  objc-class-ref in GoogleSignIn(GIDSignIn.o)
  objc-class-ref in GoogleSignIn(GIDRuntimeConfigFetcher.o)
"_OBJC_CLASS_$_GSDK_GTMSessionFetcherService", referenced from:
  objc-class-ref in GoogleSignIn(GIDSignIn.o)
"_OBJC_CLASS_$_GSDK_OpenInChromeController", referenced from:
  objc-class-ref in GoogleSignIn(GIDSignIn.o)
 ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)