根据客户端和服务器端配置打包都没问题，但时执行 node ./dist/bundle.js时报错。

1、webpack.server.js：

const path = require("path");
const nodeExternals = require("webpack-node-externals");
const merge = require("webpack-merge");

const config = require("./webpack.base.js");

const serverConfig = {
  target: "node",
  mode: "development",
  entry: "./src/server/index.js",
  output: {
    filename: "bundle.js",
    // path: path.resolve(__dirname, "../dist/server"),
    publicPath: "/"
  },
  externals: [nodeExternals()],
  module: {
    rules: [
      {
        test: /\.css?$/,
        use: [
          "isomorphic-style-loader",
          {
            loader: "css-loader",
            options: {
              modules: true
            }
          }
        ]
      },
      {
        test: /\.(png|jpg|gif)$/,
        use: {
          loader: "url-loader",
          options: {
            name: path.posix.join("static", "img/[name]_[hash:6].[ext]"),
            limit: 100
          }
        }
      }
    ]
  }
};

module.exports = merge(config, serverConfig);

2、代码中仅仅是引入了weui

import "weui";

3、bundle.js

/***/ "weui":
/*!***********************!*\
  !*** external "weui" ***!
  \***********************/
/*! no static exports found */
/***/ (function(module, exports) {

eval("module.exports = require(\"weui\");\n\n//# sourceURL=webpack:///external_%22weui%22?");

4、执行node ./dist/bundle.js 报错

C:\Users\Administrator\Desktop\demo\node_modules\_weui@1.1.3@weui\dist\style\weui.css:6
html{
    ^

SyntaxError: Unexpected token {
    at new Script (vm.js:79:7)
    at createScript (vm.js:251:10)
    at Object.runInThisContext (vm.js:303:10)
    at Module._compile (internal/modules/cjs/loader.js:657:28)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)