title: Android Emulator: Unfortunately App has stopped
body: <p>I'm new to Android Programming. I'm following the guide on Android Developers to get started with Android.</p>
  
  <p>When trying to run simple Hello World App on the Emulator, the emulator shows "Unfortunately, My First App has stopped.", where My First App is name of the App.</p>
  
  <p><em>This is my AndroidManifest file:</em></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.example.myfirstapp"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="8"
          android:targetSdkVersion="19" /&gt;
  
      &lt;application
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" &gt;
          &lt;activity
              android:name="com.example.myfirstapp.MainActivity"
              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;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p><em>This is my mainactivity file:</em></p>
  
  <pre><code>package com.example.myfirstapp;
  
  import android.support.v7.app.ActionBarActivity;
  import android.support.v7.app.ActionBar;
  import android.support.v4.app.Fragment;
  import android.os.Bundle;
  import android.view.LayoutInflater;
  import android.view.Menu;
  import android.view.MenuItem;
  import android.view.View;
  import android.view.ViewGroup;
  import android.os.Build;
  
  public class MainActivity extends ActionBarActivity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
  
          if (savedInstanceState == null) {
              getSupportFragmentManager().beginTransaction()
                      .add(R.id.container, new PlaceholderFragment())
                      .commit();
          }
      }
  
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
  
          // Inflate the menu; this adds items to the action bar if it is present.
          getMenuInflater().inflate(R.menu.main, menu);
          return true;
      }
  
      @Override
      public boolean onOptionsItemSelected(MenuItem item) {
          // Handle action bar item clicks here. The action bar will
          // automatically handle clicks on the Home/Up button, so long
          // as you specify a parent activity in AndroidManifest.xml.
          int id = item.getItemId();
          if (id == R.id.action_settings) {
              return true;
          }
          return super.onOptionsItemSelected(item);
      }
  
      /**
       * A placeholder fragment containing a simple view.
       */
      public static class PlaceholderFragment extends Fragment {
  
          public PlaceholderFragment() {
          }
  
          @Override
          public View onCreateView(LayoutInflater inflater, ViewGroup container,
                  Bundle savedInstanceState) {
              View rootView = inflater.inflate(R.layout.fragment_main, container, false);
              return rootView;
          }
      }
  
  }
  </code></pre>
  
  <p><em>This is the LogCat:</em></p>
  
  <pre><code>06-13 23:56:44.148: I/Process(1209): Sending signal. PID: 1209 SIG: 9
  06-13 23:56:45.828: W/dalvikvm(1249): VFY: unable to resolve static field 1559 (ActionBarWindow) in Landroid/support/v7/appcompat/R$styleable;
  06-13 23:56:45.828: D/dalvikvm(1249): VFY: replacing opcode 0x62 at 0x0004
  06-13 23:56:45.848: D/AndroidRuntime(1249): Shutting down VM
  06-13 23:56:45.848: W/dalvikvm(1249): threadid=1: thread exiting with uncaught exception (group=0xb2a6fba8)
  06-13 23:56:45.878: E/AndroidRuntime(1249): FATAL EXCEPTION: main
  06-13 23:56:45.878: E/AndroidRuntime(1249): Process: com.example.myfirstapp, PID: 1249
  06-13 23:56:45.878: E/AndroidRuntime(1249): java.lang.NoClassDefFoundError: android.support.v7.appcompat.R$styleable
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:107)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.support.v7.app.ActionBarActivityDelegateICS.onCreate(ActionBarActivityDelegateICS.java:58)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:98)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at com.example.myfirstapp.MainActivity.onCreate(MainActivity.java:18)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.app.Activity.performCreate(Activity.java:5231)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.app.ActivityThread.access$800(ActivityThread.java:135)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.os.Handler.dispatchMessage(Handler.java:102)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.os.Looper.loop(Looper.java:136)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at android.app.ActivityThread.main(ActivityThread.java:5017)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at java.lang.reflect.Method.invokeNative(Native Method)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at java.lang.reflect.Method.invoke(Method.java:515)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
  06-13 23:56:45.878: E/AndroidRuntime(1249):     at dalvik.system.NativeStart.main(Native Method)
  06-13 23:56:53.678: I/Process(1249): Sending signal. PID: 1249 SIG: 9
  </code></pre>
  
  <p><em>This is the activity_main file:</em></p>
  
  <pre><code>&lt;FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      android:id="@+id/container"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      tools:context="com.example.myfirstapp.MainActivity"
      tools:ignore="MergeRootFrame" /&gt;
  </code></pre>