edittextからtabの検索ページに飛べない 起動した瞬間エラー

05-11 06:21:13.528: ERROR/AndroidRuntime(212): java.lang.NullPointerException
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at android.widget.TabHost.onTouchModeChanged(TabHost.java:179)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at android.view.ViewTreeObserver.dispatchOnTouchModeChanged(ViewTreeObserver.java:591)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at android.view.ViewRoot.ensureTouchModeLocally(ViewRoot.java:1877)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at android.view.ViewRoot.performTraversals(ViewRoot.java:715)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at android.view.ViewRoot.handleMessage(ViewRoot.java:1613)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at android.os.Handler.dispatchMessage(Handler.java:99)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at android.os.Looper.loop(Looper.java:123)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at android.app.ActivityThread.main(ActivityThread.java:4203)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at java.lang.reflect.Method.invokeNative(Native Method)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at java.lang.reflect.Method.invoke(Method.java:521)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
05-11 06:21:13.528: ERROR/AndroidRuntime(212): at dalvik.system.NativeStart.main(Native Method)