webpack的版本问题太烦人了
我这些匹配的版本是在 npm 6.4.1 node 10.15.1 的情况下适用。
axios@0.27.2
"css-loader": "^3.2.0",
"style-loader": "^1.0.0",
"webpack": "^4.41.2",
"webpack-cli": "^3.3.10",
"webpack-dev-server": "^3.9.0"
指定版本，不再报错
cnpm install webpack@4.41.2 webpack-cli@3.3.10 webpack-dev-server@3.9.0 style-loader@1.0.0 css-loader@3.2.0 -D
