빌드랑 아무런문제가 없는데 이런에러가 납니다.

java.lang.NullPointerException
 at com.android.ddmlib.Client.sendAndConsume(Client.java:572)
 at com.android.ddmlib.HandleHello.sendHELO(HandleHello.java:142)
 at com.android.ddmlib.HandleHello.sendHelloCommands(HandleHello.java:65)
 at com.android.ddmlib.Client.getJdwpPacket(Client.java:671)
 at com.android.ddmlib.MonitorThread.processClientActivity(MonitorThread.java:317)
 at com.android.ddmlib.MonitorThread.run(MonitorThread.java:263)

도저히 어디서... 뭐가틀렸는지를 찾을수가없어서 도움을 요청해봅니다.

아래는 소스 원문 입니다.
main.java 입니다.

package catholic.schedule;
import android.app.*;
import android.os.*;
import android.preference.*;
import android.accessibilityservice.*;
import android.accounts.*;
import android.bluetooth.*;
import android.content.*;
import android.database.*;
import android.gesture.*;
import android.graphics.*;
import android.location.*;
import android.speech.*;
import android.telephony.*;
import android.util.*;
import android.view.*;
import android.widget.*;
public class main extends Activity {
    /** Called when the activity is first created. */
 public static final int ID_MENU_PREFERENCES_XML = Menu.FIRST+1;
 public static final int ID_MENU_PREFERENCES_INTENT = Menu.FIRST+2;
  
 SharedPreferences defaultSharedPref;
  
 TextView tvImportance_date;
 TextView tvAdd_delete_date;
 TextView tvSet_d_day;
 TextView tvRemember_day;
 TextView tvSetting;
 TextView tvexcept_call;
 TextView tvSMS_Setting;
 TextView tvTalling;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
//        addPreferencesFromResource(R.xml.settings);
        tvImportance_date = (TextView)findViewById(R.id.Importance_date);
        tvAdd_delete_date = (TextView)findViewById(R.id.add_delete_date);
        tvSet_d_day = (TextView)findViewById(R.id.set_d_day);
        tvRemember_day = (TextView)findViewById(R.id.remember_day);
        tvSetting = (TextView)findViewById(R.id.setting);
        tvexcept_call = (TextView)findViewById(R.id.except_call);
        tvSMS_Setting = (TextView)findViewById(R.id.SMS_Setting);
        tvTalling = (TextView)findViewById(R.id.talling);
        
        
        // date/date/catholic.schedule/shared_prefs/catholic.schedule_preferences.xml파일과
        // 연결되는 SharedPreferences 인터페이스 얻기.
        // 해당파일이 없다면 안드로이드가 자동으로 생성
        defaultSharedPref = PreferenceManager.getDefaultSharedPreferences(this);
    }
    protected void onResume(){
     super.onResume();
     
     // App의 DefaultSharedPreference 파일로 부터 환경 설정값 얻기
     boolean isOptionalMsgShown = defaultSharedPref.getBoolean("Importance_date",false);
     String strOptionalMsg = defaultSharedPref.getString("AdditionalMsg","<None>");
     String strColor = defaultSharedPref.getString("TextColor","FFFFFFFF");
     String strRingtone = defaultSharedPref.getString("Rington","<None Selected>");
          
     // Activity의 child view들의 환경 설정값 복원
     tvImportance_date.setTextColor((int)Long.parseLong(strColor,16));
     tvAdd_delete_date.setTextColor((int)Long.parseLong(strColor,16));
     tvSet_d_day.setTextColor((int)Long.parseLong(strColor,16));
     tvRemember_day.setTextColor((int)Long.parseLong(strColor,16));
     tvSetting.setTextColor((int)Long.parseLong(strColor,16));
     tvexcept_call.setTextColor((int)Long.parseLong(strColor,16));
     tvSMS_Setting.setTextColor((int)Long.parseLong(strColor,16));
     tvTalling.setTextColor((int)Long.parseLong(strColor,16));
    }
    @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  menu.add(Menu.NONE, ID_MENU_PREFERENCES_XML, Menu.NONE, "환경설정(XML 리소스)");
  menu.add(Menu.NONE, ID_MENU_PREFERENCES_INTENT, Menu.NONE, "환경설정(Intent)");
  return super.onCreateOptionsMenu(menu);
 }
    
    @Override
 public boolean onOptionsItemSelected(MenuItem item) {
     switch (item.getItemId()) {
     case ID_MENU_PREFERENCES_XML:
      // Intent를 사용해 다른 Activity를 실행 (Intent 관련 포스트에서 자세히 다룰 예정
      startActivity(new Intent(this, PrefActivityFromResource.class));
      return true;
     case ID_MENU_PREFERENCES_INTENT:
      startActivity(new Intent(this, PrefActivityFromResource.class));
      return true;
     default:
      finish();
      return super.onOptionsItemSelected(item);
     } 
 }
}

PrefActivityFromResource.java 입니다.
package catholic.schedule;
import android.app.*;
import android.os.*;
import android.preference.*;
import android.accessibilityservice.*;
import android.accounts.*;
import android.bluetooth.*;
import android.content.*;
import android.database.*;
import android.gesture.*;
import android.graphics.*;
import android.location.*;
import android.speech.*;
import android.telephony.*;
import android.util.*;
import android.view.*;
import android.widget.*;
public class main extends Activity {
    /** Called when the activity is first created. */
 public static final int ID_MENU_PREFERENCES_XML = Menu.FIRST+1;
 public static final int ID_MENU_PREFERENCES_INTENT = Menu.FIRST+2;
  
 SharedPreferences defaultSharedPref;
  
 TextView tvImportance_date;
 TextView tvAdd_delete_date;
 TextView tvSet_d_day;
 TextView tvRemember_day;
 TextView tvSetting;
 TextView tvexcept_call;
 TextView tvSMS_Setting;
 TextView tvTalling;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
//        addPreferencesFromResource(R.xml.settings);
        tvImportance_date = (TextView)findViewById(R.id.Importance_date);
        tvAdd_delete_date = (TextView)findViewById(R.id.add_delete_date);
        tvSet_d_day = (TextView)findViewById(R.id.set_d_day);
        tvRemember_day = (TextView)findViewById(R.id.remember_day);
        tvSetting = (TextView)findViewById(R.id.setting);
        tvexcept_call = (TextView)findViewById(R.id.except_call);
        tvSMS_Setting = (TextView)findViewById(R.id.SMS_Setting);
        tvTalling = (TextView)findViewById(R.id.talling);
        
        
        // date/date/catholic.schedule/shared_prefs/catholic.schedule_preferences.xml파일과
        // 연결되는 SharedPreferences 인터페이스 얻기.
        // 해당파일이 없다면 안드로이드가 자동으로 생성
        defaultSharedPref = PreferenceManager.getDefaultSharedPreferences(this);
    }
    protected void onResume(){
     super.onResume();
     
     // App의 DefaultSharedPreference 파일로 부터 환경 설정값 얻기
     boolean isOptionalMsgShown = defaultSharedPref.getBoolean("Importance_date",false);
     String strOptionalMsg = defaultSharedPref.getString("AdditionalMsg","<None>");
     String strColor = defaultSharedPref.getString("TextColor","FFFFFFFF");
     String strRingtone = defaultSharedPref.getString("Rington","<None Selected>");
          
     // Activity의 child view들의 환경 설정값 복원
     tvImportance_date.setTextColor((int)Long.parseLong(strColor,16));
     tvAdd_delete_date.setTextColor((int)Long.parseLong(strColor,16));
     tvSet_d_day.setTextColor((int)Long.parseLong(strColor,16));
     tvRemember_day.setTextColor((int)Long.parseLong(strColor,16));
     tvSetting.setTextColor((int)Long.parseLong(strColor,16));
     tvexcept_call.setTextColor((int)Long.parseLong(strColor,16));
     tvSMS_Setting.setTextColor((int)Long.parseLong(strColor,16));
     tvTalling.setTextColor((int)Long.parseLong(strColor,16));
    }
    @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  menu.add(Menu.NONE, ID_MENU_PREFERENCES_XML, Menu.NONE, "환경설정(XML 리소스)");
  menu.add(Menu.NONE, ID_MENU_PREFERENCES_INTENT, Menu.NONE, "환경설정(Intent)");
  return super.onCreateOptionsMenu(menu);
 }
    
    @Override
 public boolean onOptionsItemSelected(MenuItem item) {
     switch (item.getItemId()) {
     case ID_MENU_PREFERENCES_XML:
      // Intent를 사용해 다른 Activity를 실행 (Intent 관련 포스트에서 자세히 다룰 예정
      startActivity(new Intent(this, PrefActivityFromResource.class));
      return true;
     case ID_MENU_PREFERENCES_INTENT:
      startActivity(new Intent(this, PrefActivityFromResource.class));
      return true;
     default:
      finish();
      return super.onOptionsItemSelected(item);
     } 
 }
}