title: Activity Not Found Exception (Activities declared and running perfectly before)
body: <p>I had an app with several activities running perfectly until I added a new activity, which became the launch activity.
  Now, the app stars in that activity but when I go to another activity it says Activity Not Found Exception even the activities are declared.</p>
  
  <p>Here is my manifest, as I do not know what I am missing.</p>
  
  <pre><code>  &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.visualizacion.Menu"
              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.example.cuestionario.Page1"
                      android:configChanges="orientation"
                       android:screenOrientation="sensorLandscape"&gt;&lt;/activity&gt;
           &lt;activity android:name=".com.example.cuestionario.Page3"
                      android:configChanges="orientation"
                       android:screenOrientation="sensorLandscape"&gt;&lt;/activity&gt;
  
          &lt;activity android:name="com.example.cuestionario.Page2"
                      android:configChanges="orientation"
                       android:screenOrientation="sensorLandscape" &gt;&lt;/activity&gt;
  
                &lt;activity android:name="com.example.cuestionario.Page4"
                      android:configChanges="orientation"
                       android:screenOrientation="sensorLandscape" &gt;&lt;/activity&gt;
                   &lt;activity android:name="com.example.cuestionario.Page5"
                      android:configChanges="orientation"
                       android:screenOrientation="sensorLandscape" &gt;&lt;/activity&gt;
                        &lt;activity android:name="com.example.cuestionario.Page6"
                      android:configChanges="orientation"
                       android:screenOrientation="sensorLandscape" &gt;&lt;/activity&gt;
                         &lt;activity android:name="com.example.cuestionario.Page7"
                      android:configChanges="orientation"
                       android:screenOrientation="sensorLandscape" &gt;&lt;/activity&gt;
                         &lt;activity android:name="com.example.visualizacion.Page1C"
                      android:configChanges="orientation"
                       android:screenOrientation="sensorLandscape" &gt;&lt;/activity&gt;
                         &lt;activity android:name="com.example.visualiacion.Page2C"
                      android:configChanges="orientation"
                       android:screenOrientation="sensorLandscape" &gt;&lt;/activity&gt;
      &lt;/application&gt;
  </code></pre>
  
  <p>When I go from Menu (Launcher Activity) to another activity it crashes with that exception. </p>
  
  <p>Thank you</p>