getorgchart.js：1未捕获的TypeError：无法在“ Window”上执行“ getComputedStyle”：参数1的类型不是“ Element”

Question

在Yii应用程序上实现getorgchart.js时遇到问题。错误读取。 Image Uncaught TypeError: Failed to execute 'getComputedStyle' on 'Window':

    <script type="text/javascript">       

        function isNumeric(n) {
            return !isNaN(parseFloat(n)) && isFinite(n);
        }


        var hex2rgb = function (hex) {
            var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
            return result ? [
                parseInt(result[1], 16),
                parseInt(result[2], 16),
                parseInt(result[3], 16)
            ] : null;
        };

        var rgb2hex = function (rgb) {
            return "#" + ((1 << 24) + (rgb[0] << 16) + (rgb[1] << 8) + rgb[2]).toString(16).slice(1);
        };

        var interpolateColor = function (color1, color2, factor) {
            if (arguments.length < 3) { factor = 0.5; }
            var result = color1.slice();
            for (var i = 0; i < 3; i++) {
                result[i] = Math.round(result[i] + factor * (color2[i] - color1[i]));
            }
            return result;
        };

        var source = [
                { id: 1, parentId: null, name: "Amber McKenzie", salary: "$10000",  image: "images/f-11.jpg" },
                { id: 2, parentId: 1, name: "Ava Field", salary: "$5000", image: "images/f-10.jpg" },
                { id: 3, parentId: 1, name: "Evie Johnson", salary: "$8000", image: "images/f-9.jpg" },
                { id: 4, parentId: 1, name: "Paul Shetler", salary: "$9000", image: "images/f-5.jpg" },
                { id: 5, parentId: 2, name: "Rebecca Francis", salary: "$3000", image: "images/f-1.jpg" },
                { id: 6, parentId: 2, name: "Riley Bray", salary: "$4000", image: "images/f-2.jpg" },
                { id: 7, parentId: 4, name: "Max Ford", salary: "$6000", image: "images/f-4.jpg" },
                { id: 8, parentId: 4, name: "Callum Whitehouse", salary: "$7000", image: "images/f-3.jpg" }
        ];


        var start = hex2rgb("#008000");
        var end = hex2rgb("#cc3300");
        var max = null;
        var min = null;
        var factor = null;

        function setFactor(chart) {
            max = null;
            min = null;
            for (var id in chart.nodes) {
                var node = chart.nodes[id];
                if (node.data["salary"]) {
                    var salary = node.data["salary"].replace("$", "");
                    if (isNumeric(salary)) {
                        if (max == null && min == null) {
                            max = salary;
                            min = salary;
                        }
                        else {
                            max = Math.max(salary, max);
                            min = Math.min(salary, min);
                        }
                    }
                }
            }
            factor = (max - min) / 100;
        }

        var peopleElement = document.getElementById("people");
        var orgChart = new getOrgChart(peopleElement, {
            primaryFields: ["salary", "name"],
            photoFields: ["image"],
            enableZoom: false,
            enableEdit: false,
            enableDetailsView: false,
            dataSource: source,
            renderNodeEvent: renderNodeEventHandler
        });        

        function renderNodeEventHandler(sender, args) {
            var salary = args.node.data["salary"].replace("$", "");
            if (!isNumeric(salary)) {
                return;
            }

            if (!factor) {
                setFactor(sender);
            }

            var val = (salary - min) / factor;
            var rgb = interpolateColor(start, end, val / 100);
            var hex = rgb2hex(rgb);
            args.content[1] = args.content[1].replace("rect", "rect style='fill: " + hex + "; stroke: " + hex + ";'")
        }
    </script>

这是已编写的javascript代码的示例。因此，会发生一些错误，例如getorgchart.js:1 Uncaught TypeError: Failed to execute 'getComputedStyle' on 'Window': parameter 1 is not of type 'Element'

因此，即使这些资产已输入到项目文件夹中。