title: IONIC 3 [ERROR] An error occurred while running cordova run android (exit code 1)
body: <p>i start for ionic 3, but i try to run command 'ionic cordova run android', i was try any way for solve this problem but i cannot found answer from this problem, i got error like this : </p>
  
  <pre><code>this result error
  [13:29:45]  preprocess started ...
  [13:29:45]  deeplinks started ...
  [13:29:45]  deeplinks finished in 44 ms
  [13:29:45]  preprocess finished in 52 ms
  [13:29:45]  webpack started ...
  [13:29:45]  copy finished in 14.20 s
  [13:30:30]  webpack finished in 45.55 s
  [13:30:30]  sass started ...
  [13:30:36]  sass finished in 5.48 s
  [13:30:36]  postprocess started ...
  [13:30:36]  postprocess finished in 22 ms
  [13:30:36]  lint started ...
  [13:30:36]  build dev finished in 64.67 s
  [13:30:36]  watch ready in 65.09 s
  [13:30:36]  dev server running: http://localhost:8100/
  
  &gt; cordova run android
  [13:30:46]  lint finished in 10.69 s
  ANDROID_HOME=C:\Program Files (x86)\Android\android-sdk
  JAVA_HOME=C:\Program Files\Java\jdk1.8.0_112
  Error: Cannot read property 'length' of undefined
  
  
  [ERROR] Cordova encountered an error.
          You may get more insight by running the Cordova command above directly.
  
  [ERROR] An error occurred while running cordova run android (exit code 1).
  </code></pre>
  
  <p>this my ionic info:</p>
  
  <p>global packages:</p>
  
  <pre><code>@ionic/cli-plugin-proxy : 1.3.0
  @ionic/cli-utils        : 1.3.0
  Cordova CLI             : 7.0.1
  Ionic CLI               : 3.3.0
  </code></pre>
  
  <p>local packages:</p>
  
  <pre><code>@ionic/app-scripts              : 1.3.7
  @ionic/cli-plugin-cordova       : 1.3.0
  @ionic/cli-plugin-ionic-angular : 1.3.0
  Cordova Platforms               : android 6.2.3
  Ionic Framework                 : ionic-angular 3.3.0
  </code></pre>
  
  <p>System:</p>
  
  <pre><code>Node       : v6.11.0
  OS         : Windows 7
  Xcode      : not installed
  ios-deploy : not installed
  ios-sim    : not installed
  </code></pre>