angentle
angentle
```react const timerRef = useRef(null); useEffect(() => { timerRef.current && clearInterval(timerRef.current); timerRef.current = null; if (!activeTime) return; timerRef.current = setInterval(() => { refresh && refresh(); }, activeTime * 1000); return...
 [](url) 这是源码18.0.0的目录 而作者提到的  并未在v18.0.0发现 "./src/Scheduler"; 导致报错 且按照6个步骤改完后 页面空白。 
I already run "python examples/web/webui.py",but the button generate doesn't work, Which step was wrong?  