[Legend Android Development] Lostpassword:
I get a FC when click onto "sound" section into settings.

I/ActivityManager( 262): Starting: Intent { act=android.intent.action.MAIN cmp=com.android.settings/.SoundSettings } from pid 2206
D/AndroidRuntime( 2206): Shutting down VM
W/dalvikvm( 2206): threadid=1: thread exiting with uncaught exception (group=0x40018560)
E/AndroidRuntime( 2206): FATAL EXCEPTION: main
E/AndroidRuntime( 2206): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.settings/com.android.settings.SoundSettings}: java.lang.ClassCastException: java.lang.Boolean
E/AndroidRuntime( 2206):	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1622)
E/AndroidRuntime( 2206):	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1638)
E/AndroidRuntime( 2206):	at android.app.ActivityThread.access$1500(ActivityThread.java:117)
E/AndroidRuntime( 2206):	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:928)
E/AndroidRuntime( 2206):	at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 2206):	at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 2206):	at android.app.ActivityThread.main(ActivityThread.java:3647)
E/AndroidRuntime( 2206):	at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 2206):	at java.lang.reflect.Method.invoke(Method.java:507)
E/AndroidRuntime( 2206):	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
E/AndroidRuntime( 2206):	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
E/AndroidRuntime( 2206):	at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 2206): Caused by: java.lang.ClassCastException: java.lang.Boolean
E/AndroidRuntime( 2206):	at android.app.ContextImpl$SharedPreferencesImpl.getString(ContextImpl.java:2801)
E/AndroidRuntime( 2206):	at android.preference.Preference.getPersistedString(Preference.java:1256)
E/AndroidRuntime( 2206):	at android.preference.ListPreference.onSetInitialValue(ListPreference.java:232)
E/AndroidRuntime( 2206):	at android.preference.Preference.dispatchSetInitialValue(Preference.java:1172)
E/AndroidRuntime( 2206):	at android.preference.Preference.onAttachedToHierarchy(Preference.java:984)
E/AndroidRuntime( 2206):	at android.preference.PreferenceGroup.addPreference(PreferenceGroup.java:156)
E/AndroidRuntime( 2206):	at android.preference.PreferenceGroup.addItemFromInflater(PreferenceGroup.java:97)
E/AndroidRuntime( 2206):	at android.preference.PreferenceGroup.addItemFromInflater(PreferenceGroup.java:38)
E/AndroidRuntime( 2206):	at android.preference.GenericInflater.rInflate(GenericInflater.java:488)
E/AndroidRuntime( 2206):	at android.preference.GenericInflater.inflate(GenericInflater.java:326)
E/AndroidRuntime( 2206):	at android.preference.GenericInflater.inflate(GenericInflater.java:263)
E/AndroidRuntime( 2206):	at android.preference.PreferenceManager.inflateFromResource(PreferenceManager.java:251)
E/AndroidRuntime( 2206):	at android.preference.PreferenceActivity.addPreferencesFromResource(PreferenceActivity.java:262)
E/AndroidRuntime( 2206):	at com.android.settings.SoundSettings.onCreate(SoundSettings.java:108)
E/AndroidRuntime( 2206):	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
E/AndroidRuntime( 2206):	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1586)
E/AndroidRuntime( 2206):	... 11 more
W/ActivityManager( 262): Force finishing activity com.android.settings/.SoundSettings
W/ActivityManager( 262): Force finishing activity com.android.settings/.Settings
W/ActivityManager( 262): Activity pause timeout for HistoryRecord{4079e9b8 com.android.settings/.SoundSettings}
I/Process ( 2206): Sending signal. PID: 2206 SIG: 9
I/ActivityManager( 262): Process com.android.settings (pid 2206) has died.
I/WindowManager( 262): WIN DEATH: Window{40943348 com.android.settings/com.android.settings.Settings paused=true}