The named parameter 'default' isn't defined

Question

I Got This Weird Error:

"The named parameter 'default' isn't defined.Try correcting the name to an existing named parameter's name, or defining a named parameter with the name 'default'."

I think error in bracket?

But I don't know at which place ?

Pls Anyone knows then help me

    @override 
    Widget build(BuildContext context) {
    return Scaffold(
    appBar: AppBar(
    title: const Text("LogIn"),
    body: Column(
        children: [
      TextField(
      controller: _email,
        obscureText: false,
        enableSuggestions: false,
        autocorrect: false,
        keyboardType: TextInputType.emailAddress,
        decoration: const InputDecoration (
          hintText: 'Enter Your Email Here',
          ),
      ),
      TextField(
      controller: _password,
        obscureText: true,
        enableSuggestions: false,
        autocorrect: false,
        decoration: const InputDecoration (
          hintText: 'Enter Your Password Here',
          ),
      ),
      TextButton(
       onPressed: () async { 
       final email = _email.text;
        final password = _password.text;
      try { final userCredential =
             await FirebaseAuth.instance.signInWithEmailAndPassword (
           email: email,
           password: password,
       );
         print(userCredential);
         } on FirebaseAuthExceptions catch (e){
         If (e.code == 'user-not-found') {
         print("User is not Found");
        } Else if (e.code == 'wrong password') {
         print("Wrong Password");
         }
         }
         },
        child: Text("LogIn"),
        ),
          TextButton(
            onPressed:() {
              Navigator.of(context).pushNamedAndRemoveUntil(
                '/Register/',
                (route) => false,
            );
            },
            child: const Text("Not Register Yet? Register Here"),
            )
          ],
        )
          default:
            return const Text("Loading..."); 
      },
      }
        )
      )
      }
    }

Answer 1

This means default is on the wrong place... check the parentheses

Update because of new code snippet:

You shared not enough code... but if you have a switch case statement it should look like this:

Widget getWidget(String input) {
  switch (input) {
    case 'lala':
      return Container();
    case 'bibi':
      return TextButton(
        onPressed: () {
          Navigator.of(context).pushNamedAndRemoveUntil(
            '/Register/',
            (route) => false,
          );
        },
        child: const Text("Not Register Yet? Register Here"),
      );
    default:
      return const Text("Loading...");
  }
}

please share your whole code for detailed help.

2. Update

Thank you for sharing. At this place a default value can't be set. I checked your Widget for wrong parentheses and this should work for you:

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("LogIn"),
      ),
      body: Column(
        children: [
          TextField(
            controller: _email,
            obscureText: false,
            enableSuggestions: false,
            autocorrect: false,
            keyboardType: TextInputType.emailAddress,
            decoration: const InputDecoration (
              hintText: 'Enter Your Email Here',
            ),
          ),
          TextField(
            controller: _password,
            obscureText: true,
            enableSuggestions: false,
            autocorrect: false,
            decoration: const InputDecoration (
              hintText: 'Enter Your Password Here',
            ),
          ),
          TextButton(
            onPressed: () async {
              final email = _email.text;
              final password = _password.text;
              try { final userCredential =
              await FirebaseAuth.instance.signInWithEmailAndPassword (
                email: email,
                password: password,
              );
              print(userCredential);
              } on FirebaseAuthExceptions catch (e){
                if (e.code == 'user-not-found') {
                  print("User is not Found");
                } Else if (e.code == 'wrong password') {
                  print("Wrong Password");
                }
              }
            },
            child: Text("LogIn"),
          ),
          TextButton(
            onPressed:() {
              Navigator.of(context).pushNamedAndRemoveUntil(
                '/Register/',
                    (route) => false,
              );
            },
            child: const Text("Not Register Yet? Register Here"),
          )
        ],
      ),
    );
  }