webpack打包报错cannot find module ‘babel-helpers‘

Question

npm执行webpack-dev-server时报错，如下图：webpack.config.js相关配置如下：        {test:/(\.jsx|\.js)$/,         use:{loader:"babel-loader",              options:{presets:["react","latest"]}},         exclude: "/node_modules"        },babel babel-core babel-loader babel-preset-react babel-preset-latest 已全部安装实际上npm测试发现babel-helpers已经自动安装了

Answer 1

把node_modules删掉重新安装试下