11-09 03:39:35.145: E/AndroidRuntime(12637): FATAL EXCEPTION: main
11-09 03:39:35.145: E/AndroidRuntime(12637): java.lang.RuntimeException: Unable to start activity ComponentInfo{net.example.ajou/net.example.ajou.Bluetooth}: android.util.AndroidRuntimeException: You cannot combine custom titles with other title features
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2110)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.app.ActivityThread.access$700(ActivityThread.java:140)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1237)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.os.Looper.loop(Looper.java:137)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.app.ActivityThread.main(ActivityThread.java:4921)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at java.lang.reflect.Method.invoke(Method.java:511)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1027)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at dalvik.system.NativeStart.main(Native Method)
11-09 03:39:35.145: E/AndroidRuntime(12637): Caused by: android.util.AndroidRuntimeException: You cannot combine custom titles with other title features
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:284)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at com.android.internal.policy.impl.PhoneWindow.generateLayout(PhoneWindow.java:2883)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at com.android.internal.policy.impl.PhoneWindow.installDecor(PhoneWindow.java:3123)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:309)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.app.Activity.setContentView(Activity.java:1924)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at net.example.ajou.Bluetooth.onCreate(Bluetooth.java:95)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.app.Activity.performCreate(Activity.java:5206)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2074)
11-09 03:39:35.145: E/AndroidRuntime(12637): 	... 11 more

초보라 어느 부분이 잘못된건지 확인을 못하겠네요 ㅜㅜ 
다른 프로젝트에서 블루투스 채팅 어플 예제를 활용하려 합니다
리스트뷰를 만들고 여기에 클릭 이벤트를 주어, 블루투스 채팅 액티비티로 넘어가게 했습니다.

문제는 제가 이때까진 갤럭시S2, 2.3.6(구버전)를 이용해 실행할때는 문제없이 넘어갔는데
다른 기기들에 확인해 보니 저런 에러가 뜨더라구요.
그래서 제 휴대폰 버전을 업그레이드(4.1.2) 하고 테스트 해보니 똑같은 에러가 발생하네요.
채팅 어플을 단독실행할 경우는 잘 실행됩니다.

어디 부분이 문제인건지 알려주세요 ㅜㅜ


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