title: Unfortunately, (App Name) has stopped. Eclipse / Android
body: <p>I'm new to eclipse and wanted to know how to keep this message </p>
  
  <pre><code>Unfortunately, (App Name) has stopped." 
  </code></pre>
  
  <p>from showing every time I run my Test Application in my AVD. I'm trying to make a LineView Layout and Eclipse shows no mistakes. So how can I fix this and how can I find out what the problem is if Eclipse shows no problems?</p>
  
  <p>(Here's a copy of my Logcat)</p>
  
  <pre><code>05-29 23:49:12.604: D/AndroidRuntime(832): Shutting down VM
  05-29 23:49:12.675: W/dalvikvm(832): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
  05-29 23:49:12.775: E/AndroidRuntime(832): FATAL EXCEPTION: main
  05-29 23:49:12.775: E/AndroidRuntime(832): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{testing.android.application.three/testing.android.application.three.MainActivityThreeActivity}: java.lang.ClassNotFoundException: Didn't find class "testing.android.application.three.MainActivityThreeActivity" on path: /data/app/testing.android.application.three-1.apk
  05-29 23:49:12.775: E/AndroidRuntime(832):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at android.app.ActivityThread.access$600(ActivityThread.java:141)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at android.os.Handler.dispatchMessage(Handler.java:99)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at android.os.Looper.loop(Looper.java:137)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at android.app.ActivityThread.main(ActivityThread.java:5041)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at java.lang.reflect.Method.invokeNative(Native Method)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at java.lang.reflect.Method.invoke(Method.java:511)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at dalvik.system.NativeStart.main(Native Method)
  05-29 23:49:12.775: E/AndroidRuntime(832): Caused by: java.lang.ClassNotFoundException: Didn't find class "testing.android.application.three.MainActivityThreeActivity" on path: /data/app/testing.android.application.three-1.apk
  05-29 23:49:12.775: E/AndroidRuntime(832):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
  05-29 23:49:12.775: E/AndroidRuntime(832):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
  05-29 23:49:12.775: E/AndroidRuntime(832):  ... 11 more
  05-29 23:49:30.595: E/Trace(851): error opening trace file: No such file or directory (2)
  05-29 23:49:30.965: D/AndroidRuntime(851): Shutting down VM
  05-29 23:49:31.015: W/dalvikvm(851): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
  05-29 23:49:31.075: E/AndroidRuntime(851): FATAL EXCEPTION: main
  05-29 23:49:31.075: E/AndroidRuntime(851): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{testing.android.application.three/testing.android.application.three.MainActivityThreeActivity}: java.lang.ClassNotFoundException: Didn't find class "testing.android.application.three.MainActivityThreeActivity" on path: /data/app/testing.android.application.three-1.apk
  05-29 23:49:31.075: E/AndroidRuntime(851):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at android.app.ActivityThread.access$600(ActivityThread.java:141)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at android.os.Handler.dispatchMessage(Handler.java:99)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at android.os.Looper.loop(Looper.java:137)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at android.app.ActivityThread.main(ActivityThread.java:5041)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at java.lang.reflect.Method.invokeNative(Native Method)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at java.lang.reflect.Method.invoke(Method.java:511)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at dalvik.system.NativeStart.main(Native Method)
  05-29 23:49:31.075: E/AndroidRuntime(851): Caused by: java.lang.ClassNotFoundException: Didn't find class "testing.android.application.three.MainActivityThreeActivity" on path: /data/app/testing.android.application.three-1.apk
  05-29 23:49:31.075: E/AndroidRuntime(851):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
  05-29 23:49:31.075: E/AndroidRuntime(851):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
  05-29 23:49:31.075: E/AndroidRuntime(851):  ... 11 more
  05-29 23:49:35.207: I/Process(851): Sending signal. PID: 851 SIG: 9
  </code></pre>
  
  <p>(Here's a copy of my activity_main_activity_three.xml)</p>
  
  <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:orientation="vertical"
      android:paddingBottom="@dimen/activity_horizontal_margin"
      android:paddingLeft="@dimen/activity_vertical_margin"
      android:paddingRight="@dimen/activity_vertical_margin"
      android:paddingTop="@dimen/activity_horizontal_margin"
      tools:context=".MainActivityThree" &gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>(Here's a copy of my MainActivityThree.java)</p>
  
  <pre><code>package testing.android.application.three;
  
  import android.os.Bundle;
  import android.app.ListActivity;
  import android.view.View;
  import android.widget.ArrayAdapter;
  import android.widget.ListView;
  import android.widget.Toast;
  
  public class MainActivityThree extends ListActivity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          //setContentView(R.layout.activity_main_activity_three);
          String[] names = new String[]{"Text 1","Text 2","Text 3","Text 4","Text 5","Text"};
          setListAdapter(new ArrayAdapter&lt;String&gt;(this,android.R.layout.simple_list_item_1,names));   
      }
  
      @Override
      protected void onListItemClick(ListView l, View v, int position, long id) {
          // TODO Auto-generated method stub
          super.onListItemClick(l, v, position, id);
          Object o = this.getListAdapter().getItem(position);
          String keyword = o.toString();
          Toast.makeText(this, "Test 1" + keyword, Toast.LENGTH_LONG).show();
      }
  }
  </code></pre>
  
  <p>(Here's a copy of my ThreeManifest)</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="testing.android.application.three"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="14"
          android:targetSdkVersion="17" /&gt;
  
      &lt;application
          android:allowBackup="true"
          android:label="@string/AppName"
          android:icon="@drawable/ic_launcher"
          android:theme="@style/ThreeTheme"&gt;
          &lt;activity
              android:name="testing.android.application.three.MainActivityThreeActivity"
              android:label="@string/AppName" &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>