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

Question

Getting the following errors while using express , webpack , bcrypt , sequelize node modules

(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

Its worked for me. i changed code in webpack.server.config.js yours may be webpack.config.js or webpack.server.js ...etc

.... webpack config...

..from...

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

to

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

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

just add below code ( same for other modules )

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

no need add

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

(we can avoid install one more module webpack-node-externals )