title: Flutter webview_flutter build is failing
body: <p>I am trying to install webview_flutter plugin but somehow my build is failing every time</p>
  
  <pre><code>Launching lib/main.dart on iPhone 11 Pro in debug mode...
  
  Running Xcode build...
  
   ├─Assembling Flutter resources...                          10.2s
   └─Compiling, linking and signing...                         2.1s
  Xcode build done.
  17.5s
  Failed to build iOS app
  Error output from Xcode build:
  ↳
      ** BUILD FAILED **
  
  
  Xcode's output:
  ↳
      &lt;path_to_project&gt;ios/Runner/GeneratedPluginRegistrant.m:10:9: fatal
      error: module 'webview_flutter' not found
      @import webview_flutter;
       ~~~~~~~^~~~~~~~~~~~~~~
      1 error generated.
      note: Using new build system
      note: Building targets in parallel
      note: Planning build
      note: Constructing build description
  
  Could not build the application for the simulator.
  Error launching application on iPhone 11 Pro.
  </code></pre>
  
  <p>pubspec.yml</p>
  
  <pre><code>dependencies:
    flutter:
      sdk: flutter
  
    webview_flutter: ^0.3.19+8
  </code></pre>
  
  <p>I tried running but it did not solve it.</p>
  
  <p><code>flutter clean</code></p>
  
  <p><code>flutter pub cache repair</code></p>