bcrypt，sequelize ERROR in ../node_modules/node-pre-gyp/lib/publish.js模块未找到:错误:无法解析'aws-sdk‘

Question

在使用express、webpack、bcrypt、sequelize节点模块时出现以下错误

(ERROR in ../node_modules/node-pre-gyp/lib/publish.js
Module not found: Error: Can't resolve 'aws-sdk' and ERROR in ../node_modules/sequelize/lib/dialects/postgres/hstore.js
Module not found: Error: Can't resolve 'pg-hstore'
ERROR in ../node_modules/node-pre-gyp/lib/publish.js
Module not found: Error: Can't resolve 'aws-sdk' in

ERROR in ../node_modules/node-pre-gyp/lib/info.js
Module not found: Error: Can't resolve 'aws-sdk' in '/my-work/react-ssr/node_modules/node-pre-gyp/lib'

ERROR in ../node_modules/node-pre-gyp/lib/publish.js
Module not found: Error: Can't resolve 'aws-sdk' in '/react-ssr/node_modules/node-pre-gyp/lib'

ERROR in ../node_modules/sequelize/lib/dialects/postgres/hstore.js
Module not found: Error: Can't resolve 'pg-hstore' in '/Users/yogesh/Documents/my-work/blogpost-example-react-ssr/node_modules/sequelize/lib/dialects/postgres'

Answer 1

这对我很有效。我在webpack.server.config.js中更改了代码，您的代码可能是webpack.config.js或webpack.server.js ...etc

……webpack配置...

..from...

entry:{...},
output: {
  path: path.join(__dirname, '..', 'build'),
  publicPath: '/',
  libraryTarget: "commonjs2"
},
target: 'node',

至

entry:{...},
output: {
  path: path.join(__dirname, '..', 'build'),
  publicPath: '/',
  libraryTarget: "commonjs2"
},
target: 'node',

externals: {
  express: 'express',
  bcrypt:'bcrypt',
  sequelize:'sequelize',
},

只需添加以下代码(与其他模块相同)

externals: {
  express: 'express',
  bcrypt:'bcrypt',
  sequelize:'sequelize',
},

不需要添加

var nodeExternals = require('webpack-node-externals');
externals: [nodeExternals()],

(我们可以避免再安装一个模块:webpack-节点-外部)