Reason for getting Unknown URI content

Question

Friends, I am facing a problem in inserting sqlite database table, 08-06 00:59:44.644: VERBOSE/Error(2407): Detail java.lang.IllegalArgumentException: Unknown URI content://com.fsp.jackrobie/jack_robie

Here my code for insert

public Uri insert(Uri uri, ContentValues values) { Uri newUri = null; try{ SQLiteDatabase db = news.getWritableDatabase(); Log.v("Insert","Start"); // Validate the requested uri if (uriMatcher.match(uri) != JACKROBIE) { throw new IllegalArgumentException("Unknown URI " + uri); }

  // Insert into database
  long id = db.insertOrThrow(TABLE_NAME, null, values);
     Log.v("Insert1",Long.toString(id));
 // Notify any watchers of the change
    newUri = ContentUris.withAppendedId(CONTENT_URI, id);
  getContext().getContentResolver().notifyChange(newUri, null);
  return newUri;

}catch(Exception e) { Log.v("Error", "Detail "+e); } return newUri; }

what the reason for getting this and how can i solve it.

Thanks in advance.