07-30 18:17:40.075 D/SubSettings(894): Launching fragment com.android.settings.DisplaySettings
07-30 18:17:40.115 D/AndroidRuntime(894): Shutting down VM
07-30 18:17:40.118 E/AndroidRuntime(894): FATAL EXCEPTION: main
07-30 18:17:40.118 E/AndroidRuntime(894): Process: com.android.settings, PID: 894
07-30 18:17:40.118 E/AndroidRuntime(894): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.settings/com.android.settings.SubSettings}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.preference.Preference.onPrepareForRemoval()' on a null object reference
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2340)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2402)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.ActivityThread.access$900(ActivityThread.java:151)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1318)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.os.Handler.dispatchMessage(Handler.java:102)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.os.Looper.loop(Looper.java:135)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.ActivityThread.main(ActivityThread.java:5269)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at java.lang.reflect.Method.invoke(Native Method)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at java.lang.reflect.Method.invoke(Method.java:372)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)
07-30 18:17:40.118 E/AndroidRuntime(894): Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.preference.Preference.onPrepareForRemoval()' on a null object reference
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.preference.PreferenceGroup.removePreferenceInt(PreferenceGroup.java:192)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.preference.PreferenceGroup.removePreference(PreferenceGroup.java:185)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at com.android.settings.DisplaySettings.onCreate(DisplaySettings.java:272)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.Fragment.performCreate(Fragment.java:2031)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:863)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.BackStackRecord.run(BackStackRecord.java:834)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1452)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:483)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at com.android.settings.SettingsActivity.switchToFragment(SettingsActivity.java:980)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at com.android.settings.SettingsActivity.onCreate(SettingsActivity.java:590)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.Activity.performCreate(Activity.java:6034)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
07-30 18:17:40.118 E/AndroidRuntime(894): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
07-30 18:17:40.118 E/AndroidRuntime(894): 	... 10 more
07-30 18:17:40.121 W/ActivityManager(7935):   Force finishing activity 1 com.android.settings/.SubSettings
07-30 18:17:40.126 W/ActivityManager(7935):   Force finishing activity 2 com.android.settings/.Settings