Android Studio AVD仿真器非监视错误

我正在尝试用Android Studio开发简单的应用程序，我甚至无法运行包含字符串“Hello World”的空白活动的默认应用程序。当我尝试在正在运行的仿真器上运行设备时，它会给我一条错误消息，并说应用程序在手表上不兼容。我不知道为什么它会认为仿真器是一个手表，但我不知道为什么我不能在不更改最简单的AVD上的任何清单的情况下模拟应用程序。这是一幅兼容性的图片

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可能重复的感谢，我已经看到了线程，但答案不是首选，所以我忽略了我正在寻找的答案。我将平台级别更改为L（唯一的其他选项），现在应用程序将加载，但我仍然想知道如何让模拟器模拟级别为20或19的设备。

08-26 16:09:16.500      733-733/com.example.mac.trial3 E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: com.example.mac.trial3, PID: 733
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mac.trial3/com.example.mac.trial3.MyActivity}: android.util.AndroidRuntimeException: You cannot combine swipe dismissal and the action bar.
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2197)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2258)
            at android.app.ActivityThread.access$800(ActivityThread.java:138)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1209)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5026)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: android.util.AndroidRuntimeException: You cannot combine swipe dismissal and the action bar.
            at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:275)
            at com.android.internal.policy.impl.PhoneWindow.generateLayout(PhoneWindow.java:2872)
            at com.android.internal.policy.impl.PhoneWindow.installDecor(PhoneWindow.java:3129)
            at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:303)
            at android.app.Activity.setContentView(Activity.java:1930)
            at com.example.mac.trial3.MyActivity.onCreate(MyActivity.java:14)
            at android.app.Activity.performCreate(Activity.java:5242)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2161)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2258)
            at android.app.ActivityThread.access$800(ActivityThread.java:138)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1209)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5026)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
            at dalvik.system.NativeStart.main(Native Method)