createUserWithEmailAndPassword is not workin giving error unexpected null value

Question

I am facing an error while trying to create a user with an email and password. It is giving an error with the value null.

body: Container(
  child: Column(
    mainAxisAlignment: MainAxisAlignment.center,
    children: <Widget>[
      TextField(
        decoration: InputDecoration(labelText: "Email"),
        onChanged: (value) {
          setState(() {
            _email = value;
          });
        },
      ),
      TextField(
        decoration: InputDecoration(labelText: "Password"),
        onChanged: (value) {
          setState(() {
            _password = value;
          });
        },
        obscureText: true,
      ),
      FlatButton(
          onPressed: () async {
            try {
              final newuser = await _auth.createUserWithEmailAndPassword(
                  _email, _password); // this is the line for the error
            

              if (newuser != Null) {
                Navigator.pushNamed(context, '/homepage');
              }
            } catch (e) {
              print(e);
            }
          },
          child: Text("Sign Up"))
    ],
  ),
));

if some one can help me with this it will be helpful

can you add the code for the `_auth`? – Asim Jawad Oct 01 '21 at 06:12 — Asim Jawad, Oct 01 '21 at 06:12
the function for the `auth` object – Asim Jawad Oct 01 '21 at 14:23 — Asim Jawad, Oct 01 '21 at 14:23

score 0 · Answer 1 · answered Oct 02 '21 at 08:26

By the looks of the error, you are passing _email and _password as null to the function. Tried using the ?? in case you have a null variable. For example Your_Function(_email ?? "", _password ?? "")

The ?? operator basically means, If the variable is null, use this value. So, if _email is null, use "". For more info, I suggest checking this answer.

createUserWithEmailAndPassword is not workin giving error unexpected null value

1 Answers1