firebaseAuth messaging ios 에러

안드로이드에선 정상작동하지만 ios에선 unknown코드가 뜨면서 메시지 전송이 실패하는 경우가 있다.

await auth.verifyPhoneNumber(

                              timeout: const Duration(seconds: 120),

                              phoneNumber: '+82' + phone1 + phone2 + phone3,

                              verificationCompleted:

                                  (phoneAuthCredential) async {

                                print("인증코드 전송됨");

                              },

                              verificationFailed: (verificationFailed) async {

                                print(verificationFailed);

                                print(verificationFailed.code);

                                print("코드발송실패");

                              },

...

 print(verificationFailed)   => 콘솔에 찍어본다면 schema url을 추가하라는 메세지가 나온다.

https://stackoverflow.com/questions/61514076/firebase-phone-auth-getting-ios-error-register-custom-url-scheme

 [Firebase (Phone Auth) Getting iOS error: register custom URL scheme

My flutter app uses Firebase Auth (Phone). I keep seeing the error: 'Please register custom URL scheme 'com.googleusercontent.apps.602546125958-5lk04ghhdfj5xxxxxxxx'. I have added the URL schema t...

stackoverflow.com](https://stackoverflow.com/questions/61514076/firebase-phone-auth-getting-ios-error-register-custom-url-scheme)

절차에 따라 진행하면 된다.