[Q] SDK 4 Home Screen Widget - No Activity Found! - Android Q&A, Help & Troubleshooting

I am new to Android SDK,but I know JAVA a little.I am on SDK v4.The problem is that,I tried to make 'HelloWidget' Home Screen Widget (with just a text box),and when I try to run the project,the console gives me
Code:
No Launcher Activity Found!
The application will only sync the package to the device!
And my app is nowhere to be found in the AVD.I had tried putting the .MAIN and Launcher in Intent filter,but no good.Here are my files:
AndroidManifest.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="removed due to newbies are not allowed to post links"
package="ax.startup"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="15" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<!-- Broadcast Receiver that will process AppWidget updates -->
<receiver android:name=".AxStartup" android:label="AxStartup">
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data android:name="android.appwidget.provider"
android:resource="@layout/startup_info" />
</receiver>
</application>
</manifest>
main.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="removed"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<EditText
android:id="@+id/txt1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="HELLO WORLD"
/>
</LinearLayout>
startup_info.xml
Code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="removed"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<EditText
android:id="@+id/txt1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textMultiLine"
android:text="ITS WORKING DUDE!"
android:minWidth="146dip"
android:minHeight="72dip"
android:updatePeriodMillis="10000"
android:initialLayout="@layout/startup_info">
<requestFocus />
</EditText>
</LinearLayout>
Java file
Code:
package ax.startup;
import android.appwidget.AppWidgetProvider;
public class AxStartup extends AppWidgetProvider {
}
I followed the tutorial from helloandroid website.
And another strange problem is that when I long press on desktop,only options to change wallpaper is coming.There is no 'Add to Home Screen' or 'Widgets' or any other menu!!!