Stroke and fill error

GoJS
1

Hi, today all of sudden i am getting error like this

stroke.PNG698×35 9.48 KB
when i try to change the color of node using stroke and fill of that node. please help me in resolve this error.

2

What is your code doing and what is the error message?

3 
$(go.Shape, "Rectangle", {
            fill: '#009CCC', strokeWidth: 1, stroke: '#009CCC',
            width: 6, stretch: go.GraphObject.Vertical, alignment: go.Spot.Left,
            // if a user clicks the colored portion of a node, cycle through colors
            click: function (e, obj) { 
                myDiagram.startTransaction("Update node color");  
                 var newColor = newColorSet;
                if (newColor > noteColors.length-1) newColor = 0;
                myDiagram.model.setDataProperty(obj.part.data, "stroke", newColor);
                 myDiagram.model.setDataProperty(obj.part.data, "fill", newColor);
                myDiagram.commitTransaction("Update node color");
            } 
          },
                           new go.Binding("fill", "fill", getNoteColor),
                           new go.Binding("stroke", "stroke", getNoteColor)
                                  
        ),

in the above code i am setting the color, and there is one more place where will just load the diagram fromt he JSON what i get (myDiagramDiv.model = go.Model.fromJson(JSON);) here also i am getting that error

4

What is getNoteColor? What is newColorSet?

Are you using the debug library? And if so, what is the error message?

I can help you faster if you provide the information I need to answer your question. Think about trying to answer your own question.

5 
 var noteColors = ['#009CCC', '#CC293D'];
    function getNoteColor(num) {
        if(num == "1"){
            newColorSet = parseInt(color);
     }else{
         color = num;
         newColorSet = parseInt(color) + 1;
     }
     return noteColors[Math.min(num, noteColors.length - 1)];
      //return "#ff0000";
    };

$(go.Shape, "Rectangle", {
            fill: '#009CCC', strokeWidth: 1, stroke: '#009CCC',
            width: 6, stretch: go.GraphObject.Vertical, alignment: go.Spot.Left,
            // if a user clicks the colored portion of a node, cycle through colors
            click: function (e, obj) { 
                myDiagram.startTransaction("Update node color");  
                 var newColor = newColorSet;
                if (newColor > noteColors.length-1) newColor = 0;
                myDiagram.model.setDataProperty(obj.part.data, "stroke", newColor);
                 myDiagram.model.setDataProperty(obj.part.data, "fill", newColor);
                myDiagram.commitTransaction("Update node color");
            } 
          },
                           new go.Binding("fill", "fill", getNoteColor),
                           new go.Binding("stroke", "stroke", getNoteColor)
                                  
        )

above is the template to change the color of the node as in this example Kanban Board but i ahve changed the variables to change the color and not only here on load of diagram i am facing the issue .