这个问题的原因是因为你依赖的webpack-dev-server有bug,只需要将packjson.js文件里的webpack-dev-server依赖的版本更改成指定版本就可以
如:^3.1.0 => 3.1.0类似这样
配置webpack-dev-server 运行时报错配置 Can't resolve 'webpack/hot/dev-server'
代码:
webpack.config.js
var path = require('path');
var HtmlwebpackPlugin = require('html-webpack-plugin');
//定义了一些文件夹的路径
var ROOT_PATH = path.resolve(__dirname);
var APP_PATH = path.resolve(ROOT_PATH, 'app');
var BUILD_PATH = path.resolve(ROOT_PATH, 'build');