Add swatch throwing error 1200

Question

I have a simple script which is attempting to add a swatch. However, it is throwing "Error 1200: an Illustrator error occurred: 1312914990 ('NA~.') Line: 18 -> newSpot.colorType = ColorModel.SPOT;" This is an example taken straight from the docs, the only change I have made is that I am getting my CMYK values from an object (colors). Also, when I hard-code the values for the CMYK values, it works.
function main(argv) {
  addSwatch('Black');
var colors = {"Black": {"c": 0, "m": 0, "y": 0, "k": 100}};
function addSwatch(color) {
  var newSpot = activeDocument.spots.add();
  var newColor = new CMYKColor();
  newColor.cyan = colors[color].c;
  newColor.magenta = colors[color].m;
  newColor.yellow = colors[color].y;
  newColor.black = colors[color].k;
  newSpot.name = color;
  newSpot.colorType = ColorModel.SPOT;
  newSpot.color = newColor;
  var newSpotColor = new SpotColor();
  newSpotColor.spot = newSpot;
main();

Answer 1

It was something with the order in which you do this process.
        function addSwatch(color) {
          var newSpot = activeDocument.spots.add();
          newSpot.colorType = ColorModel.SPOT;
          var newColor = new CMYKColor();
          newColor.cyan = colors[color].c;
          newColor.magenta = colors[color].m;
          newColor.yellow = colors[color].y;
          newColor.black = colors[color].k;
          newSpot.color = newColor;
          var newSpotColor = new SpotColor();
          newSpotColor.spot = newSpot;
          newSpotColor.name = color;
I guess after you assign the spot a color model, you can't give it a name, so you give the name to the swatch-spot-color-thing-object which was created with new SpotColor() and had your spot assigned to it.
Scratch that, it's not putting the name on it.