小编Bra*_*man的帖子

我正在尝试使用Firebase在我的Android应用程序中发布的新Firestore.不幸的是,我在尝试写入数据库时​​不断收到此错误.

public class MainActivity extends AppCompatActivity {

EditText txtName,txtSurname;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar =  findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    txtName = findViewById(R.id.Name);
    txtSurname = findViewById(R.id.Surname);

    FloatingActionButton fab = findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            FirebaseFirestore db = FirebaseFirestore.getInstance();

            Map<String, Object> user = new HashMap<>();
            user.put("first", "Ada");
            user.put("last", "Lovelace");
            user.put("born", 1815);

            db.collection("users")
                    .add(user)
                    .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                        @Override
                        public void onSuccess(DocumentReference documentReference) {
                            //Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
                        }
                    })
                    .addOnFailureListener(new OnFailureListener() …