Not getting correct error message from Google signin.

I am use following Amplify version 2.0.0-Next Major, I register new user on amplify and try to login with amplify google signin "Amplify.Auth.signInWithWebUI(for: .google, presentationAnchor: presentationAnchor, options: .preferPrivateSession())" with same user then that time i got error response "invaid_request". But i need to get response like this "invalid_request: PreSignUp failed with error {"error":{"code":409,"custom_code":"002","message":"U2FsdGVkX19xJYJt/Dckptj0KKXuBfrD3uhZScr1bBvqYF2Q29iGb7iC16MDCwLwbIVs1tNcaHQreEIopKwg9onymeCveyiCwHNzjpmPciQ3XSiQ7Oi+pVW4KyB5lUXC"}}."