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POAndroid Unexpected Shutdown
 

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  1. POAndroid Unexpected Shutdown
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    <p>I've tried to get some data from the nasa rss ( I'm following Android HeadFirst book ) using the Simple Framework. The problem that I face is that the application closes down automatically when the main activity is loaded. </p> <p>Here is the code :</p> <pre><code>public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); try { print(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } </code></pre> <p>and here is the print method:</p> <pre><code>public void print() throws Exception { Rss rss = new Rss(); Serializer serializer = new Persister(); File source = new File("http://www.nasa.gov/rss/dyn/image_of_the_day.rss"); serializer.read(rss, source); TextView text = (TextView) this.findViewById(R.id.imageTitle); text.setText(rss.channel.title); } </code></pre> <p>logcat:</p> <pre><code>&gt; 12-11 18:27:03.459: D/AndroidRuntime(20621): Shutting down VM 12-11 18:27:03.459: W/dalvikvm(20621): threadid=1: thread exiting with uncaught exception (group=0x400205a0) 12-11 18:27:03.469: E/AndroidRuntime(20621): FATAL EXCEPTION: main 12-11 18:27:03.469: E/AndroidRuntime(20621): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.nasadailyimage/com.example.nasadailyimage.MainActivity}: java.lang.ClassNotFoundException: com.example.nasadailyimage.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.nasadailyimage-1.apk] 12-11 18:27:03.469: E/AndroidRuntime(20621): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1743) 12-11 18:27:03.469: E/AndroidRuntime(20621): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1851) 12-11 18:27:03.469: E/AndroidRuntime(20621): at android.app.ActivityThread.access$1500(ActivityThread.java:132) 12-11 18:27:03.469: E/AndroidRuntime(20621): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038) 12-11 18:27:03.469: E/AndroidRuntime(20621): at android.os.Handler.dispatchMessage(Handler.java:99) 12-11 18:27:03.469: E/AndroidRuntime(20621): at android.os.Looper.loop(Looper.java:150) 12-11 18:27:03.469: E/AndroidRuntime(20621): at android.app.ActivityThread.main(ActivityThread.java:4277) 12-11 18:27:03.469: E/AndroidRuntime(20621): at java.lang.reflect.Method.invokeNative(Native Method) 12-11 18:27:03.469: E/AndroidRuntime(20621): at java.lang.reflect.Method.invoke(Method.java:507) 12-11 18:27:03.469: E/AndroidRuntime(20621): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 12-11 18:27:03.469: E/AndroidRuntime(20621): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 12-11 18:27:03.469: E/AndroidRuntime(20621): at dalvik.system.NativeStart.main(Native Method) 12-11 18:27:03.469: E/AndroidRuntime(20621): Caused by: java.lang.ClassNotFoundException: com.example.nasadailyimage.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.nasadailyimage-1.apk] 12-11 18:27:03.469: E/AndroidRuntime(20621): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240) 12-11 18:27:03.469: E/AndroidRuntime(20621): at java.lang.ClassLoader.loadClass(ClassLoader.java:551) 12-11 18:27:03.469: E/AndroidRuntime(20621): at java.lang.ClassLoader.loadClass(ClassLoader.java:511) 12-11 18:27:03.469: E/AndroidRuntime(20621): at android.app.Instrumentation.newActivity(Instrumentation.java:1040) 12-11 18:27:03.469: E/AndroidRuntime(20621): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1735) 12-11 18:27:03.469: E/AndroidRuntime(20621): ... 11 more </code></pre> <p>Here is the manifest file</p> <pre><code> &lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.nasadailyimage" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" /&gt; &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.nasadailyimage.MainActivity" 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;/application&gt; &lt;/manifest&gt; </code></pre> <p>I've create a brand new android project. And it works</p> <p>However even if I remove all the libraries I added ( simple.org) and if I comment out everything that I've added in MainActivity.java is <strong>still</strong> makes the application close down</p> <p>I have been able to observe that the line:</p> <pre><code>Serializer serialezer = new Persister(); </code></pre> <p>causes the error. Is the framework simple used for android applications? Does it usually cause these kind of errors?</p> <p><strong>Update</strong></p> <p>I have also tried different versions of the jar. None seem to work</p> <p>Closing Eclipse does not help whatsoever</p> <p>The program only runs when the Serializer line is <em>commented</em> out</p>
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    1. COhow about a logcat stacktrace?
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    2. COCan you please post the full stack trace?
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      1. USCollin Flynn
    3. CO@vandus . Collin Flynn sorry for late response. I had to update my plugins in order to get the logcat. It is here now
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      1. USBula
 

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