I followed this link to integrate the gmail account in my project
https://developers.google.com/identity/sign-in/ios/sign-in?ver=swift#enable_sign-in
But it shows below linker error
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)
early
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