Import issue

[huyongtao-cmd]

Describe the bug 创建OrgChart实例会有警告，不能正常创建实例；d3引入也会报错，这是什么原因呢？

To Reproduce Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior A clear and concise description of what you expected to happen.

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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context Add any other context about the problem here.

[mrinmays]

Hi @huyongtao-cmd , sorry I'm seeing this a bit late, will leave a fix for someone visiting in the future.

On the top, chart declaration can be updated as follows.

const chart = useRef(null);

and inside the useLayoutEffect (+ everywhere else), usage would be updated to -

 if (!chart.current) {
    chart.current = new ChartRenderer();
}