title: No Launcher Activity found with .Launcher in Manifest.xml already included?
body: <p>I am trying to run a source code I've found online for android. When I run it, it gives me:</p>
  
  <blockquote>
    <p>No Launcher activity found!<br>
    The launch will only sync the application package on the device!<br>
    Performing sync</p>
  </blockquote>
  
  <p>I already have in my Manifest.xml the following:</p>
  
  <pre><code>action android:name="android.intent.action.MAIN" 
  category android:name="android.intent.category.LAUNCHER" 
  </code></pre>
  
  <p>What could be wrong? The weird thing is that it worked once. And then when I ran it again it gave me needs to force the application.</p>
  
  <p>It is not a duplicate question because I've read that everyone is suggesting to place those in the Manifest.xml.</p>