android - setContentView(R.layout.main); error when start new project -

i'm starting develop android, , followed tutorial on google set up. i'm using eclipse , have both android sdk , eclipse plugin installed, when create new android project, error on line start.

my code :-

package khalid.app.fm;  import android.app.activity; import android.os.bundle; import android.r.*;  public class radioblancofmactivity extends activity {     /** called when activity first created. */     @override     public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.main);     } } 

remove

import android.r.*; 

don't import android.r.