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POActionBarActivity catch an error on Phone
 

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    <p>** I was recomended to use ActionBar Activity** Here is the previous code</p> <pre><code>import android.support.v7.app.ActionBar; import android.support.v7.app.ActionBarActivity; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } </code></pre> <p>I wrote new application and followed advice.</p> <pre><code>import android.os.Bundle; import android.support.v7.app.ActionBar; import android.support.v7.app.ActionBarActivity; public class MainActivity extends ActionBarActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ActionBar actionBar =getSupportActionBar(); actionBar.setDisplayHomeAsUpEnabled(true); setContentView(R.layout.activity_main); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } } </code></pre> <p><em>if I use ACtionBarActivity instead of Activity<br> I catch an error message on phone, when I try to run it.</em> Please tell me what I do wrong</p> <p>info from Logcat</p> <pre><code> 07-27 15:14:19.942: I/Process(21715): Sending signal. PID: 21715 SIG: 9 07-27 15:34:38.521: W/dalvikvm(23579): Unable to resolve superclass of Lcom/example/project/MainActivity; (532) 07-27 15:34:38.521: W/dalvikvm(23579): Link of class 'Lcom/example/project/MainActivity;' failed 07-27 15:34:38.521: D/AndroidRuntime(23579): Shutting down VM 07-27 15:34:38.521: W/dalvikvm(23579): threadid=1: thread exiting with uncaught exception (group=0x40ae5210) 07-27 15:34:38.521: E/AndroidRuntime(23579): FATAL EXCEPTION: main 07-27 15:34:38.521: E/AndroidRuntime(23579): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.project/com.example.project.MainActivity}: java.lang.ClassNotFoundException: com.example.project.MainActivity 07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1891) 07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992) 07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.access$600(ActivityThread.java:127) 07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158) 07-27 15:34:38.521: E/AndroidRuntime(23579): at android.os.Handler.dispatchMessage(Handler.java:99) 07-27 15:34:38.521: E/AndroidRuntime(23579): at android.os.Looper.loop(Looper.java:137) 07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.main(ActivityThread.java:4441) 07-27 15:34:38.521: E/AndroidRuntime(23579): at java.lang.reflect.Method.invokeNative(Native Method) 07-27 15:34:38.521: E/AndroidRuntime(23579): at java.lang.reflect.Method.invoke(Method.java:511) 07-27 15:34:38.521: E/AndroidRuntime(23579): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823) 07-27 15:34:38.521: E/AndroidRuntime(23579): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590) 07-27 15:34:38.521: E/AndroidRuntime(23579): at dalvik.system.NativeStart.main(Native Method) 07-27 15:34:38.521: E/AndroidRuntime(23579): Caused by: java.lang.ClassNotFoundException: com.example.project.MainActivity 07-27 15:34:38.521: E/AndroidRuntime(23579): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61) 07-27 15:34:38.521: E/AndroidRuntime(23579): at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 07-27 15:34:38.521: E/AndroidRuntime(23579): at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.Instrumentation.newActivity(Instrumentation.java:1023) 07-27 15:34:38.521: E/AndroidRuntime(23579): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1882) 07-27 15:34:38.521: E/AndroidRuntime(23579): ... 11 more 07-27 15:34:38.531: I/Process(23579): Sending signal. PID: 23579 SIG: 9 </code></pre> <p>edit and export screenshot <a href="http://i.stack.imgur.com/MNfc1.jpg" rel="nofollow">http://i.stack.imgur.com/MNfc1.jpg</a></p> <p>screenshot of 1-7</p> <p><a href="http://i.stack.imgur.com/NTpP3.jpg" rel="nofollow">http://i.stack.imgur.com/NTpP3.jpg</a></p>
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