Webpack 编译不过去，不解

Question

ERROR in ./node_modules/_babel-core@6.26.3@babel-core/lib/helpers/resolve.js
Module not found: Error: Can't resolve 'module' in 'E:\react07\node_modules\_babel-core@6.26.3@babel-core\lib\helpers'
 @ ./node_modules/_babel-core@6.26.3@babel-core/lib/helpers/resolve.js 34:14-31
 @ ./node_modules/_babel-core@6.26.3@babel-core/lib/helpers/resolve-from-possible-names.js
 @ ./node_modules/_babel-core@6.26.3@babel-core/lib/helpers/resolve-plugin.js
 @ ./node_modules/_babel-core@6.26.3@babel-core/lib/api/node.js
 @ ./node_modules/_babel-core@6.26.3@babel-core/index.js
 @ ./app/Days.js
 @ ./app/main.js

  "dependencies": {
    "dgram": "^1.0.1",
    "dns": "^0.2.2",
    "express": "^4.16.3",
    "fs": "^0.0.1-security",
    "jquery": "^3.3.1",
    "net": "^1.0.2",
    "tls": "^0.0.1",
    "webpack": "^4.16.5"
  },
  "devDependencies": {
    "babel-core": "^6.26.3",
    "babel-loader": "^7.1.5",
    "babel-preset-env": "^1.7.0",
    "babel-preset-react": "^6.24.1",
    "mssql": "^4.1.0",
    "react": "^16.4.2",
    "react-dom": "^16.4.2"
  },

  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /(node_modules|bower_components)/,
        use: {
          loader: 'babel-loader',
          options: {
            "presets": [
              ["env", {
                "targets": {
                  "node": "current"
                }
              }],
              ["react"]
            ]
          }
        }
      }
    ]
  },

Answer 1

rm -rf node_modules
cnpm i 

Answer 2

原来是node 不支持import .