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POUnable to resolve FragmentActivity running on Android 2.3.3 with compatibility package v4
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  1. POUnable to resolve FragmentActivity running on Android 2.3.3 with compatibility package v4
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    copied!<p>I'm building a simple hello world app to learn about the Android Compatibility Package. I'm able to get the app to run on the 3.2 emulator but when I run it on a 2.3.3 emulator I get </p> <pre><code>10-12 11:36:14.474: WARN/dalvikvm(469): Unable to resolve superclass of Lcom/example/MyActivity; (11) 10-12 11:36:14.564: WARN/dalvikvm(469): Link of class 'Lcom/example/MyActivity;' failed 10-12 11:36:14.564: DEBUG/AndroidRuntime(469): Shutting down VM 10-12 11:36:14.584: WARN/dalvikvm(469): threadid=1: thread exiting with uncaught exception (group=0x40015560) 10-12 11:36:14.624: ERROR/AndroidRuntime(469): FATAL EXCEPTION: main java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example/com.example.MyActivity}: java.lang.ClassNotFoundException: com.example.MyActivity in loader dalvik.system.PathClassLoader[/data/app/com.example-1.apk] </code></pre> <p>So obviously it can't find FragmentActivity (which is the super of com.example.MyActivity). I just don't know why.</p> <p>Some things to note:</p> <p>1) I'm following the tutorials at <a href="http://mobile.tutsplus.com/tutorials/android/android-compatibility-working-with-fragments/" rel="nofollow">http://mobile.tutsplus.com/tutorials/android/android-compatibility-working-with-fragments/</a> which isn't very thorough. </p> <p>2) I'm pretty sure I'm building the compatibility package into the APK correctly with maven. I installed the jar in my local maven repository and am depending on it with compile. I think that if I weren't building it in correctly it wouldn't be running on the 3.2 emulator.</p> <p>3) I've tried building with IntelliJ and the maven-compiler-plugin. Same result.</p> <p>Any help would be greatly appreciated. Thanks.</p> <p>EDIT... Here's the Manifest </p> <pre><code>&lt;uses-sdk android:minSdkVersion="4" android:targetSdkVersion="11" /&gt; &lt;uses-permission android:name="android.permission.INTERNET" /&gt; &lt;application android:label="@string/app_name" android:icon="@drawable/icon"&gt; &lt;activity android:name=".MyActivity" 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=".TutViewerActivity" android:label="@string/app_name" &gt; &lt;/activity&gt; &lt;/application&gt; &lt;uses-sdk android:minSdkVersion="7" /&gt; </code></pre> <p></p> <p>and the MyActivity definition</p> <pre><code>public class MyActivity extends FragmentActivity implements TutListFragment.OnTutSelectedListener </code></pre>
 

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