Вход Google выдает ошибку 10: тост, когда я использую apk

Question

Мое приложение войдет в систему с помощью Google. Всякий раз, когда я запускаю приложение путем установки из моей android студии, оно работает, однако, когда я генерирую apk (не пакет приложений) для распространения и установки, ошибка возникает снова. Должен ли я использовать пакет приложений для устранения ошибки?

mAuth = FirebaseAuth.getInstance();

        //Then we need a GoogleSignInOptions object
        //And we need to build it as below
        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestIdToken(getString(R.string.default_web_client_id))
                .requestEmail()
                .build();
        //Then we will get the GoogleSignInClient object from GoogleSignIn class
        mGoogleSignInClient = GoogleSignIn.getClient(this, gso);
        //Now we will attach a click listener to the sign_in_button
        //and inside onClick() method we are calling the signIn() method that will open
        //google sign in intent
        findViewById(R.id.button2).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                signIn();
            }
        });
@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        //if the requestCode is the Google Sign In code that we defined at starting
        if (requestCode == RC_SIGN_IN) {

            //Getting the GoogleSignIn Task
            Task <GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
            try {
                //Google Sign In was successful, authenticate with Firebase
                GoogleSignInAccount account = task.getResult(ApiException.class);

                //authenticating with firebase
                firebaseAuthWithGoogle(account);
            } catch (ApiException e) {
                Toast.makeText(MainActivity.this, e.getMessage(), Toast.LENGTH_SHORT).show();
            }
        }
    }

    private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
        Log.e("Error", "firebaseAuthWithGoogle:" + acct.getId());
        //getting the auth credential
        AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);


        //Now using firebase we are signing in the user here
        mAuth.signInWithCredential(credential)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        if (task.isSuccessful()) {
                            Log.e("Error", "signInWithCredential:success");
                            FirebaseUser user = mAuth.getCurrentUser();
                            startActivity(new Intent(MainActivity.this, main_activity2.class));
                            Toast.makeText(MainActivity.this, "User Signed In", Toast.LENGTH_SHORT).show();
                        } else {
                            // If sign in fails, display a message to the user.
                            Log.e("Error", "signInWithCredential:failure", task.getException());
                            Toast.makeText(MainActivity.this, "Authentication failed.",
                                    Toast.LENGTH_SHORT).show();

                        }

                        // ...
                    }
                });
    }

    //this method is called on click
    private void signIn() {
        //getting the google signin intent
        Intent signInIntent = mGoogleSignInClient.getSignInIntent();

        //starting the activity for result
        startActivityForResult(signInIntent, RC_SIGN_IN);
    }
}

Я скопировал свой код SHA1 из Gradle (справа)> Задача> android> signatureReport. Я прочитал другие ответы не решили мою проблему. Я не разместил свое приложение в Play Store, просто тестирую его с друзьями!