MissingPluginException

Why This Happens

In Flutter, this error occurs when a plugin's Dart code calls a platform channel method but no native implementation is registered. This usually happens after adding a plugin without rebuilding the native project, or when running on a platform the plugin does not support.

The Problem

// After adding a new plugin to pubspec.yaml:
// flutter run  <-- hot restart won't register new plugins

The Fix

// Stop the app completely, then:
// flutter clean
// flutter pub get
// flutter run  <-- full rebuild registers the plugin

Step-by-Step Fix

1. 1

   Identify the error

   Look at the error message: MissingPluginException. This means the native side of a plugin is not registered.

2. 2

   Find the cause

   Check if you recently added a plugin and only did a hot restart instead of a full rebuild, or if the plugin supports your target platform.

3. 3

   Apply the fix

   Run flutter clean, then flutter pub get, and do a full flutter run to rebuild the native project with the new plugin.