title: Android Studio appcompat library missing again
body: <p>I have installed Android SDK tools 22.0.1 and 23.0.3
  I want to target SDK version 22.</p>
  
  <p>After chasing previous posts here, I found that people got this to work</p>
  
  <pre><code>    compile 'com.android.support:appcompat-v7:22.2.1'
  </code></pre>
  
  <p>However, I am still getting: </p>
  
  <pre><code>Failed to resolve com.android.support:support-v4:22.2.1
  </code></pre>
  
  <p>So, I add version 4, then I get same error, twice (below each other)</p>
  
  <p>Which is the latest appcompat support library? Where do you find out the latest version? </p>
  
  <p>This is really frustrating...</p>
  
  <p>Thanks</p>