title: No Launcher activity found! For a widget? Does it have to be an activity
body: <p>I have a widget that I've developed and it runs fine on my emulator. But when I go to and run it on my device it doesn't show up in the list</p>
  
  <p>Here is what my console says:</p>
  
  <pre><code>[2010-10-14 12:43:43 - MyWidget] No Launcher activity found!
  [2010-10-14 12:43:43 - MyWidget] The launch will only sync the application package on the device!**
  [2010-10-14 12:43:43 - MyWidget] Performing sync
  [2010-10-14 12:43:43 - MyWidget] Automatic Target Mode: using device 'D70068f58fd3'
  [2010-10-14 12:43:43 - MyWidget] Uploading MyWidget.apk onto device 'D70068f58fd3'
  [2010-10-14 12:43:43 - MyWidget] Installing MyWidget.apk...
  [2010-10-14 12:43:45 - MyWidget] Success!
  [2010-10-14 12:43:45 - MyWidget] /MyWidget/bin/MyWidget.apk installed on device
  [2010-10-14 12:43:45 - MyWidget] Done!
  </code></pre>
  
  <p>I can see that indeed the application package is on my device via the Applications manager.</p>
  
  <p>I've seen the other posts on SO:
  <a href="https://stackoverflow.com/questions/3347569/android-sample-app-not-showing-up">Android sample app not showing up</a>
  <a href="https://stackoverflow.com/questions/3888383/launching-android-widget/3936481#3936481">launching android widget</a>
  and 
  <a href="https://stackoverflow.com/questions/2186758/first-android-test-project-does-not-start">First Android Test Project does not start</a></p>
  
  <p>But I have a widget. Is that different?  And here is my AndroidManifest.xml, which does indeed have a Launcher defined.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="org.example.widget"
  android:versionCode="1"
    android:versionName="1.0"&gt;
  &lt;application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true"&gt;
      &lt;receiver android:name=".MyWidget"
                android:label="Anything"&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;/receiver&gt;
  
  &lt;/application&gt;
  &lt;uses-sdk android:minSdkVersion="7" /&gt;
  </code></pre>
  
  <p> </p>