title: Caused by: java.lang.ClassNotFoundException: Didn't find class on path
body: <p>after launching my app, emulator tells me that unfortunatelly it had stopped. I had the same error previously, then I fixed it but after adding splash activity i have this problem again.</p>
  
  <pre><code>03-24 15:14:21.180: E/AndroidRuntime(857): FATAL EXCEPTION: main
  03-24 15:14:21.180: E/AndroidRuntime(857): Process: com.gosha.bux, PID: 857
  03-24 15:14:21.180: E/AndroidRuntime(857): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.gosha.bux/com.gosha.bux.perv}: java.lang.ClassNotFoundException: Didn't find class "com.gosha.bux.perv" on path: DexPathList[[zip file "/data/app/com.gosha.bux-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.gosha.bux-2, /system/lib]]
  03-24 15:14:21.180: E/AndroidRuntime(857):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2121)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at android.app.ActivityThread.access$800(ActivityThread.java:135)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at android.os.Handler.dispatchMessage(Handler.java:102)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at android.os.Looper.loop(Looper.java:136)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at android.app.ActivityThread.main(ActivityThread.java:5017)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at java.lang.reflect.Method.invokeNative(Native Method)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at java.lang.reflect.Method.invoke(Method.java:515)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at dalvik.system.NativeStart.main(Native Method)
  03-24 15:14:21.180: E/AndroidRuntime(857): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.gosha.bux.perv" on path: DexPathList[[zip file "/data/app/com.gosha.bux-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.gosha.bux-2, /system/lib]]
  03-24 15:14:21.180: E/AndroidRuntime(857):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
  03-24 15:14:21.180: E/AndroidRuntime(857):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2112)
  03-24 15:14:21.180: E/AndroidRuntime(857):  ... 11 more
  03-24 15:14:43.061: I/Process(857): Sending signal. PID: 857 SIG: 9
  </code></pre>
  
  <p>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.gosha.bux"
  android:versionCode="1"
  android:versionName="1.0" &gt;
  
  &lt;uses-sdk
      android:minSdkVersion="8"
      android:targetSdkVersion="18" /&gt;
  
  &lt;application
      android:allowBackup="true"
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name"
      android:theme="@style/AppTheme" 
      android:debuggable="true"
      &gt;
      &lt;activity
          android:name="com.gosha.bux.perv"
          android:label="@string/app_name" &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="com.gosha.bux.MainActivity"
          android:label="@string/app_name" &gt;
          &lt;intent-filter&gt;
              &lt;action android:name="com.gosha.bux.MAINACTIVITY" /&gt;
  
              &lt;category android:name="android.intent.category.DEFAULT" /&gt;
          &lt;/intent-filter&gt;
      &lt;/activity&gt;
  &lt;/application&gt;
  </code></pre>
  
  <p></p>
  
  <p>splash activity</p>
  
  <pre><code>    public class perv extends Activity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          // TODO Auto-generated method stub
          super.onCreate(savedInstanceState);
          setContentView(com.gosha.bux.R.layout.pervy);
          Thread timer = new Thread(){
              public void run(){
                  try{
                      sleep(5000);
                  }
              catch (InterruptedException e){
                  e.printStackTrace();
              }
                  finally {
                      Intent openMainActivity = new Intent("com.gosha.bux.MAINACTIVITY");
                      startActivity(openMainActivity);
                  }
              }
  
          };
      }
  
      }
  </code></pre>