I seem to have a tricky problem since the latest ADT update to release 17.

I have made a simple application to illustrate my problem, I don't know if I'm doing anything wrong. The main Activity of my application is inheriting from FragmentActivity in the support package and somehow the application crashes at launch.

To illustrate, I made a sample project.

First of all, here is the code of my dummy class, DummyProjectActivity, very simple:

public class DummyProjectActivity extends FragmentActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
}

Then, there is the manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="be.emich.labs"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".DummyProjectActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

The .jar file is imported correctly in the project and I am getting this stack trace:

E/AndroidRuntime(11509): FATAL EXCEPTION: main
E/AndroidRuntime(11509): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{be.emich.labs/be.emich.labs.DummyProjectActivity}: java.lang.ClassNotFoundException: be.emich.labs.DummyProjectActivity
E/An
android android-fragmentactivity
Edit
Report