Bad state: Cannot read providers when not initialized

Why This Happens

In Flutter with Riverpod, all provider reads require a ProviderScope ancestor. If you forget to wrap your app with ProviderScope, any ref.watch or ref.read call will fail. This is typically added in main() around the root widget.

The Problem

void main() {
  runApp(MyApp()); // Missing ProviderScope!
}

The Fix

void main() {
  runApp(
    ProviderScope(
      child: MyApp(),
    ),
  );
}

Step-by-Step Fix

1. 1

   Identify the error

   Look at the error about missing ProviderScope. This means Riverpod was not initialized at the root of the app.

2. 2

   Find the cause

   Check your main() function to see if ProviderScope wraps the root widget.

3. 3

   Apply the fix

   Wrap your root app widget with ProviderScope in the main() function.