title: Warning: Activity not started, its current task has been brought to the front
body: <p>I think this question is very usual. Many results on Stackoverflow has said about this. The general answer is: because an old app is running, and I try to run a new one from Eclipse (but no change in compile), so Android will notice this.</p>
  <p>But, I have done many things as I could:</p>
  <ol>
  <li>change something for eclipse rebuild again.</li>
  <li>Restart Eclipse or Emulator</li>
  </ol>
  <p>But this warning still exists (and of course, my app still cannot run).</p>
  <p>Here is my manifest file. Please take a look at this file and help me.</p>
  <pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
  &lt;manifest xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;\
      package=&quot;com.game.mrnom&quot;
      android:versionCode=&quot;1&quot;
      android:versionName=&quot;1.0&quot; &gt;
      &lt;uses-sdk android:minSdkVersion=&quot;8&quot; /&gt;
      &lt;application
          android:debuggable=&quot;true&quot;
          android:icon=&quot;@drawable/icon&quot;
          android:label=&quot;Mr.Nom&quot; &gt;
          &lt;activity
              android:label=&quot;Mr.Nom&quot;
              android:name=&quot;.MrNomGame&quot;
              android:screenOrientation=&quot;portrait&quot;
              android:configChanges=&quot;keyboard|keyboardHidden|orientation&quot; &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name=&quot;android.intent.action.MAIN&quot; /&gt;
                  &lt;category android:name=&quot;android.intent.category.LAUNCHER&quot; /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
      &lt;uses-permission android:name=&quot;android.permission.WAKE_LOCK&quot;/&gt;
      &lt;uses-permission android:name=&quot;android.permission.WRITE_EXTERNAL_STORAGE&quot;/&gt;
      &lt;uses-sdk android:targetSdkVersion=&quot;8&quot; android:minSdkVersion=&quot;8&quot;/&gt;
  &lt;/manifest&gt;
  </code></pre>
  <p>Thank you for reading.</p>
  <p><strong>Note:</strong> This situation can occur whether or not you are using Eclipse, AndroiStudio or an emulator.  It occurs when a application is running and a <strong>'startActivity' request is made</strong> to start (perhaps another) activity in that application.  The request activity is not started, the previous 'task' of the application is just
  brought to the foreground.  In the case of starting the program from Eclipse, I
  suspect that Eclipse is issuing a startActivity request to the system on the emulator and that because some task/activity of the application is already in the foreground, that the expected behavior is not seen.</p>