06-08 01:39:41.043: E/AndroidRuntime(605): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {yjlim.android.SMSReceiver/yjlim.android.SMSReceiver.SMSReceiver}; have you declared this activity in your AndroidManifest.xml?
06-08 01:39:41.043: E/AndroidRuntime(605): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404)
06-08 01:39:41.043: E/AndroidRuntime(605): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378)
06-08 01:39:41.043: E/AndroidRuntime(605): at android.app.ContextImpl.startActivity(ContextImpl.java:622)
06-08 01:39:41.043: E/AndroidRuntime(605): at android.content.ContextWrapper.startActivity(ContextWrapper.java:258)
06-08 01:39:41.043: E/AndroidRuntime(605): at android.content.ContextWrapper.startActivity(ContextWrapper.java:258)
06-08 01:39:41.043: E/AndroidRuntime(605): at yjlim.android.Alarm.AlarmReceiver.onReceive(AlarmReceiver.java:17)
06-08 01:39:41.043: E/AndroidRuntime(605): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2810)

이건 에러 내용이구요...
분명히.. 메니페스트에서 오류가 난것 같은데... 

public class AlarmReceiver extends BroadcastReceiver {


@Override

public void onReceive(Context context, Intent intent) {

Toast.makeText(context,"Received Alarm", Toast.LENGTH_SHORT).show();

Intent i= new Intent();

i.setClassName("yjlim.android.SMSReceiver", "yjlim.android.SMSReceiver.SMSReceiver"); -> 이거는 암시적으로 되어있는 액티비티입니다!

i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

context.startActivity(i); -> 여기서 오류가 있다구 뜨구요!

}

}


저 인텐트는.. BroadcastReceiver를 불러주는 인텐트 입니다..

이게 리시버에서 밖에 있는 리시버를 불러줘서 에러가 나는 건가요?