小编Gba*_*iwo的帖子

我的应用程序无法再次构建，不知道我做错了什么。错误消息在下面列出

C：\ flutter \ flutter.pub-cache \ hosted \ pub.dartlang.org \ firebase_auth-0.8.0 + 1 \ android \ src \ main \ java \ io \ flutter \ plugins \ firebaseauth \ FirebaseAuthPlugin.java：9：错误：包androidx.annotation不存在import androidx.annotation.NonNull; ^ C：\ flutter \ flutter.pub-cache \ hosted \ pub.dartlang.org \ firebase_auth-0.8.0 + 1 \ android \ src \ main \ java \ io \ flutter \ plugins \ firebaseauth \ FirebaseAuthPlugin.java：10：错误：包androidx.annotation不存在import androidx.annotation.Nullable; ^ C：\ flutter \ flutter.pub-cache \ hosted \ pub.dartlang.org \ firebase_auth-0.8.0 + 1 \ android \ …

我的注册页面有以下字段名称、密码、确认密码和电子邮件，但似乎 flutter firebase 仅适用于电子邮件和密码。如何使更多字段在以下代码中工作：

createUser()async{
    if (checkFields()){
      await FirebaseAuth.instance.createUserWithEmailAndPassword(email: _email, password: _password)
          .then((user){
        print('signed in as ${user.uid}');

        Navigator.push(context, MaterialPageRoute(builder: (context)=> (Usertype())));

      }).catchError((e){
        print(e);
      });
    }
  }