Why im getting provider error in project? - firebase

Question

Im getting this error when im trying to use provider in my code .
IN new in flutter and a beginner so maybe anyone can explain how to fix I search already but still cannot find something.
The following ProviderNotFoundException was thrown building MeinAccount(dirty, state: _MeinAccountState#e2cbb):
Error: Could not find the correct Provider<User> above this MeinAccount Widget
This happens because you used a `BuildContext` that does not include the provider
of your choice. There are a few common scenarios:
- You added a new provider in your `main.dart` and performed a hot-reload.
To fix, perform a hot-restart.
- The provider you are trying to read is in a different route.
Providers are "scoped". So if you insert of provider inside a route, then
other routes will not be able to access that provider.
- You used a `BuildContext` that is an ancestor of the provider you are trying to read.
Make sure that MeinAccount is under your MultiProvider/Provider<User>.
This usually happens when you are creating a provider and trying to read it immediately.
For example, instead of:
Widget build(BuildContext context) {
return Provider<Example>(
create: (_) => Example(),
// Will throw a ProviderNotFoundError, because `context` is associated
// to the widget that is the parent of `Provider<Example>`
child: Text(context.watch<Example>()),
),
}
consider using `builder` like so:
Widget build(BuildContext context) {
return Provider<Example>(
create: (_) => Example(),
// we use `builder` to obtain a new `BuildContext` that has access to the provider
builder: (context) {
// No longer throws
return Text(context.watch<Example>()),
}
),
}
If none of these solutions work, consider asking for help on StackOverflow:
https://stackoverflow.com/questions/tagged/flutter
The relevant error-causing widget was:
MeinAccount file:///Users/myname/StudioProjects/projectname/lib/main.dart:48:41
When the exception was thrown, this was the stack:
#0 Provider._inheritedElementOf (package:provider/src/provider.dart:332:7)
#1 Provider.of (package:provider/src/provider.dart:284:30)
#2 _MeinAccountState.build (package:projectname/seitenleiste/meinacount.dart:362:27)
#3 StatefulElement.build (package:flutter/src/widgets/framework.dart:4704:27)
#4 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4587:15)
This is my widget UPDATEEE:
Widget _buildPasswordTF() {
final user = Provider.of<User>(context);
return StreamBuilder<UserData>(
stream: DatbaseService(uid:user.uid).userData,
builder: (context, snapshot) {
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(
'Password',
Maybe anyone can help :
Also here's my main dart UPDATEEE:
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context){
return MultiProvider(
providers: [
//DatbaseService(create: (_) => User()), // add your providers like this.
],
child: MaterialApp(
debugShowCheckedModeBanner: false,
title:'Appbar Scaffold',
theme: ThemeData(
scaffoldBackgroundColor: Colors.white,
primaryColor: Colors.white,
If you need more informations please add a comment. Thanks again.

Answer 1

It's because you haven't registered your provider. You need to register them, before consuming them. Wrap your MaterialApp widget with MultiProvider (if you have multiple providers in your app).
example:
child: MultiProvider(
providers: [
ChangeNotifierProvider(create: (_) => User()), // add your providers like this.
],
child:MaterialApp(..........)
);