错误

Template execution failed: ReferenceError: BASE_URL is not defined
ReferenceError: BASE_URL is not defined

解决

替换 index.html

替换前

<link rel="icon" href="<%=%20BASE_URL%20%>favicon.ico">

替换后

<link rel="icon" href="<%=%20htmlWebpackPlugin.options.url%20%>favicon.ico">