Android.util.AndroidRuntimeException: вы не можете комбинировать удаление салфетки и панель действий

Я новичок в программировании на Android и начал образец приветственной мировой программы, но застрял с ошибкой ниже:

07-05 13:52:20.830: W/dalvikvm(898): threadid=1: thread exiting with uncaught exception (group=0xb2ac4d70)
07-05 13:52:20.850: E/AndroidRuntime(898): FATAL EXCEPTION: main
07-05 13:52:20.850: E/AndroidRuntime(898): Process: com.example.helloandroid, PID: 898
07-05 13:52:20.850: E/AndroidRuntime(898): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.helloandroid/com.example.helloandroid.MainActivity}: android.util.AndroidRuntimeException: You cannot combine swipe dismissal and the action bar.
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2197)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2258)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.app.ActivityThread.access$800(ActivityThread.java:138)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1209)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.os.Handler.dispatchMessage(Handler.java:102)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.os.Looper.loop(Looper.java:136)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.app.ActivityThread.main(ActivityThread.java:5026)
07-05 13:52:20.850: E/AndroidRuntime(898):  at java.lang.reflect.Method.invokeNative(Native Method)
07-05 13:52:20.850: E/AndroidRuntime(898):  at java.lang.reflect.Method.invoke(Method.java:515)
07-05 13:52:20.850: E/AndroidRuntime(898):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
07-05 13:52:20.850: E/AndroidRuntime(898):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
07-05 13:52:20.850: E/AndroidRuntime(898):  at dalvik.system.NativeStart.main(Native Method)
07-05 13:52:20.850: E/AndroidRuntime(898): Caused by: android.util.AndroidRuntimeException: You cannot combine swipe dismissal and the action bar.
07-05 13:52:20.850: E/AndroidRuntime(898):  at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:275)
07-05 13:52:20.850: E/AndroidRuntime(898):  at com.android.internal.policy.impl.PhoneWindow.generateLayout(PhoneWindow.java:2872)
07-05 13:52:20.850: E/AndroidRuntime(898):  at com.android.internal.policy.impl.PhoneWindow.installDecor(PhoneWindow.java:3129)
07-05 13:52:20.850: E/AndroidRuntime(898):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:303)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.app.Activity.setContentView(Activity.java:1930)
07-05 13:52:20.850: E/AndroidRuntime(898):  at com.example.helloandroid.MainActivity.onCreate(MainActivity.java:13)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.app.Activity.performCreate(Activity.java:5242)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
07-05 13:52:20.850: E/AndroidRuntime(898):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2161)

Файл манифеста:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.helloandroid"
    android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="18" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.helloandroid.MainActivity"
        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>

MainActivity.Java

package com.example.helloandroid;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}
}

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"

 >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

</RelativeLayout>

Пожалуйста, помогите мне узнать, где я ошибаюсь, в настоящее время я на Android 4.3, API 18,

Я пробовал Android 4.0.3 API 15, Android 4.4W API 20; Я также пробовал редактировать sdk, как показано ниже, но не повезло.

<uses-sdk
   android:minSdkVersion="15"
   android:targetSdkVersion="19" />