Oddly, I am getting a similar problem, but mine seems not quite so simple:

import NsccLibrary.*;
import java.awt.Color;

/**
 * This is a class in which tic-tac-toe boards will appear.
 * 
 * @author Darby McShain
 * @version 1.0
 */

public class TicTacToeFoSho{

  private NsccWindow wind;
   /**
   * This creates the window and places the contents of TicTacToeFoSho within it.
   */

  private NsccLine northWest;

  public TicTacToeFoSho( ) {

    // create the window
    wind = new NsccWindow(10, 10, 300, 300);
    wind.setTitle("Resistance (Statistically) Is Futile!");

        // create and place the head
    northWest = new NsccLine();
    northWest.setLocation(40, 40);
    wind.add(northWest);

    wind.repaint();
  }

  public void drawTicTacToeBoard(int x, int y){

    NsccLine topLineHoriz;
    topLineHoriz = new NsccLine(0,30, 90, 30);
    wind.add(topLineHoriz);

    NsccLine bottomLineHoriz;
    bottomLineHoriz = new NsccLine(0,60, 90, 60);
    wind.add(bottomLineHoriz);

    NsccLine leftLineVert;
    leftLineVert = new NsccLine(30, 0,30, 90);
    wind.add(leftLineVert);

    NsccLine rightLineVert;
    rightLineVert = new NsccLine(0,30, 60, 90);
    wind.add(rightLineVert);

  }

}

I am supposed to get a tic-tac-toe board in the pane. Instead I get:

File: C:\Documents and Settings\tech\Desktop\CSC 142\TicTacToeFoSho.java [line: 26]
Error: C:\Documents and Settings\tech\Desktop\CSC 142\TicTacToeFoSho.java:26: cannot find symbol
symbol : constructor NsccLine()
location: class NsccLibrary.NsccLine

From the error:

cannot find symbol
symbol : constructor NsccLine()

That means the class NsccLine doesn't have a constructor with no arguments

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