title: Android "java.lang.RuntimeException: Unable to instantiate activity" exception
body: <p>I am getting this error.
  Problem is that the "caused by" clause doesnt seem to give any more information.</p>
  
  <pre><code>12-25 19:34:05.050: E/AndroidRuntime(28888): Uncaught handler: thread main exiting due to uncaught exception
  12-25 19:34:05.070: E/AndroidRuntime(28888): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{il.co.anykey.games.yaniv.pro/ui.YanivMultiPlayerClientActivity}: java.lang.InstantiationException: ui.YanivMultiPlayerClientActivity
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2424)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2519)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at android.app.ActivityThread.access$2200(ActivityThread.java:123)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1870)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at android.os.Handler.dispatchMessage(Handler.java:99)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at android.os.Looper.loop(Looper.java:123)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at android.app.ActivityThread.main(ActivityThread.java:4370)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at java.lang.reflect.Method.invokeNative(Native Method)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at java.lang.reflect.Method.invoke(Method.java:521)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at dalvik.system.NativeStart.main(Native Method)
  12-25 19:34:05.070: E/AndroidRuntime(28888): Caused by: java.lang.InstantiationException: ui.YanivMultiPlayerClientActivity
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at java.lang.Class.newInstanceImpl(Native Method)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at java.lang.Class.newInstance(Class.java:1479)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
  12-25 19:34:05.070: E/AndroidRuntime(28888):    ... 11 more
  12-25 19:34:05.110: E/SemcCheckin(28888): Get crash dump level : java.io.FileNotFoundException: /data/semc-checkin/crashdump
  </code></pre>