Your project contains error(s), please fix them before running your application 라는 에러가 뜨네요

프로젝트 - 클린도 해봤구요... 안되네요 갑자기 ㅡㅡ;

package hj2.sa.app;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
import android.app.AlertDialog;

public class SunganActivity extends Activity {
  //사이트 띄우기.
  private static final String myURL1="http://m.naver.com/";
  WebView webview;
 
  @Override
  public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.main);
     
   webview = (WebView) findViewById(R.id.webview);
   webview.getSettings().setJavaScriptEnabled(true);
   webview.setVerticalScrollbarOverlay(true);
   webview.loadUrl("myURL1);
     
   webview.setWebViewClient(new WebViewTestClient());
        
  }
        
 
  @Override
 public boolean onCreateOptionsMenu(Menu menu){
   menu.add(0, 0, 0, "새로고침");
   menu.add(0, 1, 0, "정보");
   menu.add(0, 2, 0, "어플종료");
   return super.onCreateOptionsMenu(menu);
  }
 
 @Override
 public boolean onOptionsItemSelected (MenuItem item) {
 switch (item.getItemId()) { 
 case 0:
  //when click case 0 = menu 0, 0, 0
  
  webview = (WebView) findViewById(R.id.webview);
   webview.getSettings().setJavaScriptEnabled(true);
   webview.reload();
   webview.setWebViewClient(new WebViewTestClient());
   //토스트를 띄운다.
   Context context = getApplicationContext();
   CharSequence Text = "새로고칩니다.";
   int duration = Toast.LENGTH_LONG;
  
     Toast toast = Toast.makeText(context, Text, duration);
     toast.show();
 return false;
 
 case 1:
  
  new AlertDialog.Builder(SunganActivity.this)
  .setTitle("정보")
  .setMessage("Version = 1.0   .setPositiveButton("확인", null).show();
  break;
  
 case 2:
  
  finish();
  
 }
 return false;
 
 }
 
  private class WebViewTestClient extends WebViewClient {
   @Override
   public boolean shouldOverrideUrlLoading(WebView view, String url) {
    view.loadUrl("url);
    return true;
   }
  }
}

분명히 어제까지 잘 되던놈이 갑자기 안되니까 뒷골이 땡기네요 ;;

어찌된 영문일까요?