Problems in default android application

Hi,

I'm trying to check how we can build apk for android using IntelliJ (11.1.2). I create project from scratch and follow steps and when running application on emulator is says:

"Unfortunately, proj has stopped."

I think its clearly a rookie error. The launch of application is:
"Launching application: com.example/com.example.MyActivity.
DEVICE SHELL COMMAND: am start -n "com.example/com.example.MyActivity"
Starting: Intent { cmp=com.example/.MyActivity }

I notice that on AndroidManifest.xml on this line:
        <activity android:name="MyActivity"

it cannot find "MyActivity".

And clearly it mention that in here: http://www.devdaily.com/android/android-unfortunately-your-app-has-stopped-error

My AndroidManifest.xml:
"<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="com.example"
          android:versionCode="1"
          android:versionName="1.0">
    <uses-sdk android:minSdkVersion="16"/>
    <application android:label="@string/app_name" android:icon="@drawable/ic_launcher">
        <activity android:name="MyActivity"
                  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>"

I tried:
<activity android:name=".MyActivity"
<activity android:name="com.example.MyActivity"
<activity android:name="proj.com.example.MyActivity"

and still nothing. Any help?

Thanks