Bar Chart is not display data create using custom visuals code

Hi,

I am Creating Bar Chart using custom visual, it will not display bars in the report. I have used the same custom code that is downloaded from the Github.

constructor

constructor(options: VisualConstructorOptions) {
            this.host = options.host;
            this.selectionManager = options.host.createSelectionManager();
            this.tooltipServiceWrapper = createTooltipServiceWrapper(this.host.tooltipService, options.element);
            let svg = this.svg = d3.select(options.element)
                .append('svg')
                .classed('barChart', true);
            console.log('4'); // I am not able to print this on console
            this.barContainer = svg.append('g')
                .classed('barContainer', true);
            console.log('5');
            this.xAxis = svg.append('g')
                .classed('xAxis', true);
        }

In the above code it will not print the '4' on console. And also update method has not been called.

Here I am not able to getting the 'this.svg', It will give the undefined value.

Am I doing something wrong in the constructor?