title: ClassNotFoundException for a ContentProvider
body: <p>I have a ContentProvider class and is declared in AndroidMenifest.xml like this:</p>
  
  <pre><code>&lt;provider android:name=".MediaSearchProvider"
      android:authorities="org.iii.romulus.meridian.mediasearch"&gt;
      &lt;path-permission android:path="/search_suggest_query"
          android:readPermission="android.permission.GLOBAL_SEARCH" /&gt;
  &lt;/provider&gt;
  </code></pre>
  
  <p>It works well on most devices, but the Market tells me some users are suffering error with it. The stack trace is:</p>
  
  <pre><code>java.lang.RuntimeException: Unable to get provider org.iii.romulus.meridian.MediaSearchProvider: java.lang.ClassNotFoundException: org.iii.romulus.meridian.MediaSearchProvider in loader dalvik.system.PathClassLoader[/mnt/asec/org.iii.romulus.meridian-1/pkg.apk]
  at android.app.ActivityThread.installProvider(ActivityThread.java:4509)
  at android.app.ActivityThread.installContentProviders(ActivityThread.java:4281)
  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4237)
  at android.app.ActivityThread.access$3000(ActivityThread.java:125)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2071)
  at android.os.Handler.dispatchMessage(Handler.java:99)
  at android.os.Looper.loop(Looper.java:123)
  at android.app.ActivityThread.main(ActivityThread.java:4627)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:521)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)
  at dalvik.system.NativeStart.main(Native Method)
  Caused by: java.lang.ClassNotFoundException: org.iii.romulus.meridian.MediaSearchProvider in loader dalvik.system.PathClassLoader[/mnt/asec/org.iii.romulus.meridian-1/pkg.apk]
  at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
  at android.app.ActivityThread.installProvider(ActivityThread.java:4494)
  ... 12 more
  </code></pre>
  
  <p>I have totally no idea about what's up and I can't reproduce it on any of my phones. I also tried clean and build, but the report still comes up.
  Anyone can help? Thanks!</p>