저렇게 되어있습니다(레이아웃 관련 자바 소스,)

근대 오류가뜨네요....

package hwanggehoon.com;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TabHost;

public class JSA1Activity extends Activity {
   /** Called when the activity is first created. */
   @Override
protected
   public void onCreate(Bundle savedlnstanceState) {
 super.onCreate(savedlnstanceState);
 setContentView(R.layout.main);
 
 
 TabHost tabHost = (TabHost)findViewByld(R.id.tabHost);
 tabHost.setup();
 
 TabHost.TabSpec spec = tabHost.newTabSpec("tag1");
 spec.setContent(R.id.tab1);
 spec.setIndicator("tab1");
 tabHost.addTab(spec);
 
 
 spec=tabHost.newTabSpec("tag2");
 spec.setContent(R.id.tab2);
 spec.setIndicator("tab2");
 tabHost.addTab(spec);
 
 tabHost.setCurrentTab(0);
   }
}

가르쳐주세요 ㅠ