title: Activity class does not exist
body: <p>Aaaargh! I don't know what's going on, but suddenly I can't launch my app. I'm using IntelliJ and I keep getting this error. I thought maybe there was a typo somewhere in the manifest, but there doesn't seem to be. Heres' the error:   </p>
  
  <pre><code>Launching application: com.foo.app/com.foo.app.main.
  DEVICE SHELL COMMAND: am start -n "com.foo.app/com.foo.app.main"
  Starting: Intent { cmp=com.foo.app/.main}
  Error type 3
  Error: Activity class {com.foo.app/com.foo.app.main} does not exist.
  </code></pre>
  
  <p>And here's my Manifest:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.foo.app"&gt;
      &lt;application android:icon="@drawable/icon" android:label="@string/app_name"&gt;
          &lt;activity android:name=".main"&gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN"/&gt;
                  &lt;category android:name="android.intent.category.LAUNCHER"/&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
          &lt;activity android:name=".NoBellsActivity"/&gt;
      &lt;/application&gt;
  &lt;/manifest&gt;
  </code></pre>
  
  <p>And the strange thing is that ADB shows me that the ActivityManager is starting the intent just fine...</p>