Steel Box fc

I/ActivityManager( 1713): Starting: Intent { act=android.intent.action.MAIN cmp=com.steel.steelbox/.activities.MainActivity } from pid 1881
E/AndroidRuntime( 1881): FATAL EXCEPTION: main
E/AndroidRuntime( 1881): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.steel.steelbox/com.steel.steelbox.activities.MainActivity}; have you declared this activity in your AndroidManifest.xml?
E/AndroidRuntime( 1881): 	at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
E/AndroidRuntime( 1881): 	at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
E/AndroidRuntime( 1881): 	at android.app.Activity.startActivityForResult(Activity.java:2827)
E/AndroidRuntime( 1881): 	at android.app.Activity.startActivity(Activity.java:2933)
E/AndroidRuntime( 1881): 	at android.preference.Preference.performClick(Preference.java:828)
E/AndroidRuntime( 1881): 	at android.preference.PreferenceScreen.onItemClick(PreferenceScreen.java:195)
E/AndroidRuntime( 1881): 	at android.widget.AdapterView.performItemClick(AdapterView.java:284)
E/AndroidRuntime( 1881): 	at android.widget.ListView.performItemClick(ListView.java:3513)
E/AndroidRuntime( 1881): 	at android.widget.AbsListView$PerformClick.run(AbsListView.java:1877)
E/AndroidRuntime( 1881): 	at android.os.Handler.handleCallback(Handler.java:587)
E/AndroidRuntime( 1881): 	at android.os.Handler.dispatchMessage(Handler.java:92)
E/AndroidRuntime( 1881): 	at android.os.Looper.loop(Looper.java:130)
E/AndroidRuntime( 1881): 	at android.app.ActivityThread.main(ActivityThread.java:3835)
E/AndroidRuntime( 1881): 	at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 1881): 	at java.lang.reflect.Method.invoke(Method.java:507)
E/AndroidRuntime( 1881): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
E/AndroidRuntime( 1881): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
E/AndroidRuntime( 1881): 	at dalvik.system.NativeStart.main(Native Method)
W/ActivityManager( 1713):   Force finishing activity com.android.settings/.Settings
W/ActivityManager( 1713): Activity pause timeout for HistoryRecord{40744eb0 com.android.settings/.Settings}
W/ResourceType( 1713): Skipping entry 0x7f040013 in package table 0 because it is not complex!
W/ResourceType( 1713): Skipping entry 0x7f040014 in package table 0 because it is not complex!
I/Process ( 1881): Sending signal. PID: 1881 SIG: 9
I/ActivityManager( 1713): Process com.android.settings (pid 1881) has died.
I/WindowManager( 1713): WIN DEATH: Window{407515b8 com.android.settings/com.android.settings.Settings paused=false}
W/ActivityManager( 1713): Activity destroy timeout for HistoryRecord{40744eb0 com.android.settings/.Settings}