title: How to solve 'Program type already present: com.google.common.util.concurrent.ListenableFuture'?
body: <p>I am trying to use WorkManager 1.0.0-alpha09. and getting this error:</p>
  
  <pre><code>Program type already present: 
  com.google.common.util.concurrent.ListenableFuture
  
  Message{kind=ERROR, text=Program type already present: 
  com.google.common.util.concurrent.ListenableFuture, sources=[Unknown source 
  file], tool name=Optional.of(D8)}
  </code></pre>
  
  <p>If i use version 1.0.0-alpha08 or less. I don't get this error, but i need public constructor </p>
  
  <pre><code>public Worker(Context context, WorkerParameters workerParams)
  </code></pre>