title: Undefined symbols for architecture i386: _FlutterMethodNotImplemented
body: <p>I am trying to run my flutter app on ios simulator which has few plugins such as connectivity, flutter_webview, fluttertoast etc.
  When I am trying to run these I am getting following error on all of these plugins.</p>
  
  <pre><code>Undefined symbols for architecture i386:
    "_FlutterMethodNotImplemented", referenced from:
        -[FluttertoastPlugin handleMethodCall:result:] in FluttertoastPlugin.o
    "_OBJC_CLASS_$_FlutterMethodChannel", referenced from:
        objc-class-ref in FluttertoastPlugin.o
  </code></pre>
  
  <p>Things are running smoothly on android.</p>
  
  <p>I have tried</p>
  
  <pre><code>flutter clean 
  pod install
  </code></pre>
  
  <p>Still the error persists.
  Anyone facing similar error? If anyone has solution to this please help me with this. Thanks</p>
  
  <p>flutter doctor -v output </p>
  
  <pre><code>[✓] Flutter (Channel beta, v0.11.9, on Mac OS X 10.14.1 18B75, locale en-IN)
      • Flutter version 0.11.9 at /Users/vipin/Downloads/soft/flutter
      • Framework revision d48e6e433c (5 days ago), 2018-11-20 22:05:23 -0500
      • Engine revision 5c8147450d
      • Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)
  
  [✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
      • Android SDK at /Users/vipin/Library/Android/sdk
      • Android NDK location not configured (optional; useful for native profiling support)
      • Platform android-28, build-tools 28.0.3
      • ANDROID_HOME = /Users/vipin/Library/Android/sdk
      • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
      • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
      • All Android licenses accepted.
  
  [✓] iOS toolchain - develop for iOS devices (Xcode 10.1)
      • Xcode at /Applications/Xcode.app/Contents/Developer
      • Xcode 10.1, Build version 10B61
      • ios-deploy 1.9.4
      • CocoaPods version 1.5.3
  
  [✓] Android Studio (version 3.2)
      • Android Studio at /Applications/Android Studio.app/Contents
      • Flutter plugin version 30.0.1
      • Dart plugin version 181.5656
      • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
  
  [✓] Connected device (1 available)
      • iPhone XR • DAE7804F-C35A-4847-94AF-BC094BE584DC • ios • iOS 12.1 (simulator)
  
  • No issues found!
  </code></pre>