title: ionic 3 Build failed for task :processDebugManifest
body: <p>I am having trouble in building my ionic 3 app. Every time I try to build the android app it gives the following error.  </p>
  
  <pre><code>* What went wrong:
  Execution failed for task ':processDebugManifest'.
  &gt; Manifest merger failed : Attribute meta-data#android.support.VERSION@value val
  ue=(25.3.1) from [com.android.support:appcompat-v7:25.3.1] AndroidManifest.xml:2
  7:9-31
          is also present at [com.android.support:support-v4:26.0.0-alpha1] Androi
  dManifest.xml:27:9-38 value=(26.0.0-alpha1).
          Suggestion: add 'tools:replace="android:value"' to &lt;meta-data&gt; element a
  t AndroidManifest.xml:25:5-27:34 to override.
  </code></pre>
  
  <p>My ionic info is as follows:</p>
  
  <p>cli packages: (C:\Users\SystemOne\AppData\Roaming\npm\node_modules)</p>
  
  <pre><code>@ionic/cli-utils  : 1.18.0
  ionic (Ionic CLI) : 3.18.0
  </code></pre>
  
  <p>global packages:</p>
  
  <pre><code>cordova (Cordova CLI) : 6.5.0
  </code></pre>
  
  <p>local packages:</p>
  
  <pre><code>@ionic/app-scripts : 3.0.0
  Cordova Platforms  : none
  Ionic Framework    : ionic-angular 3.7.1
  </code></pre>
  
  <p>System:</p>
  
  <pre><code>Node : v6.10.0
  npm  : 3.10.10
  OS   : Windows 7
  </code></pre>
  
  <p>Environment Variables:</p>
  
  <pre><code>ANDROID_HOME : not set
  </code></pre>
  
  <p>Misc:</p>
  
  <pre><code>backend : legacy
  </code></pre>
  
  <p>Any help would be much appriciated</p>
  
  <p><a href="https://i.stack.imgur.com/mziem.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mziem.png" alt="enter image description here"></a></p>