title: proguard Note: duplicate definition of program class com.facebook.android.R.string how do I fix this?
body: <p>How do I resolve this note from proguard. What are the implications of a duplicate definition? Do I need to fix this and if so how? I'm also seeing:</p>
  
  <pre><code>[proguard] Note: there were 625 duplicate class definitions.
  [proguard] Initializing...
  [proguard] Note: the configuration refers to the unknown class      'com.android.vending.licensing.ILicensingService'
  </code></pre>
  
  <p>I'm also seeing:</p>
  
  <pre><code>  [proguard] Reading program jar [/GoogleAdMobAdsSdk-4.3.1.jar]
    [proguard] Note: duplicate definition of program class [com.google.ads.Ad] etc.
  </code></pre>
  
  <p>taking out </p>
  
  <pre><code>   injars  bin/classes 
  </code></pre>
  
  <p>helped reduce this down to 200 classes.  But for each library jar I am including I am seeing the above. Same for Google analytics jar file.  </p>
  
  <p>And I am seeing:</p>
  
  <pre><code> [proguard] Note: duplicate definition of program class [com.test.activities.MyActivity]
  </code></pre>
  
  <p>Where MyActivity only appears in one of my projects ...  how do I get rid of this?</p>