firebase phone authentication problem in flutter

Question

I am using below code for firebase authentication.

 void NavigateToOtp(){
      //Navigate to another screen
    }
    Future<void> verifyPhone() async {
      final PhoneCodeSent smsOTPSent = (String verId, [int forceCodeResend]) {
        this.verificationId = verId;
      };
      try {
        await _auth.verifyPhoneNumber(
            phoneNumber: '+XX XXXXXXXXXX', // PHONE NUMBER TO SEND OTP
            codeAutoRetrievalTimeout: (String verId) {
              //Starts the phone number verification process for the given phone number.
              //Either sends an SMS with a 6 digit code to the phone number specified, or sign's the user in and [verificationCompleted] is called.
              this.verificationId = verId;
            },
            codeSent:
            smsOTPSent, // WHEN CODE SENT THEN WE OPEN DIALOG TO ENTER OTP.
            timeout: const Duration(seconds: 20),
            verificationCompleted: (AuthCredential phoneAuthCredential) {
              print(_auth.currentUser());
              print(phoneAuthCredential);
              NavigateToOtp();

            },
            verificationFailed: (AuthException exceptio) {
              print('${exceptio.message}');
            });
      } catch (e) {
        handleError(e);
      }
    }

    void sendOtp(){
      verifyPhone();
    }

But is showing me below error :

[FirebaseAuth: ] getGoogleApiForMethod() returned Gms: com.google.firebase.auth.api.internal.zzaq@847da6d

I am using Android emulator Pixel API 29.

1. Added phone number in Google-sign and enable phone signin providers in firebase console
2. Also created SHA key and also added google firebase plugin in .gradle file

I am using this code : https://www.c-sharpcorner.com/article/otp-authentication-in-flutter-using-firebase/

Answer 1

In the new Firebase auth version, they've made major changes like Recaptcha for human verification.it needs a browser to verify so, Add below dependency to your build.gradle file

implementation 'androidx.browser:browser:1.3.0'

This will help firebase to open the browser for a reCAPTCHA verification.