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Error: Please install 'pg' module manually

See original GitHub issue

I’m in the process of switching to Yarnpkg from npm, and i hit this issue. Was working fine before when i was using npm, but using yarn i get this error.

Error: Please install 'pg' module manually
    at new ConnectionManager (/home/app/kerberos/node_modules/sequelize/lib/dialects/postgres/connection-manager.js:27:13)
    at new PostgresDialect (/home/app/kerberos/node_modules/sequelize/lib/dialects/postgres/index.js:12:28)
    at new Sequelize (/home/app/kerberos/node_modules/sequelize/lib/sequelize.js:233:18)

Issue Analytics

State:
Created 7 years ago
Comments:33 (3 by maintainers)

Top GitHub Comments

35reactions

iamkirkbatercommented, Jan 27, 2017

Looks like this has to do with where you have the modules installed.

I was running a globally installed sequelize, and got this error. When I ran ./node_modules/.bin/sequelize from the node_modules folder it ran fine.

So if you’re running sequelize from the globally installed node folder, you’ll need to also have pg installed globally

25reactions

benbonnetcommented, Dec 13, 2016

node v7.2.1, sequelize 3.27.0, pg 6.1.1 returns the same problem when running migrations. Deleted node_modules, reinstalled sequelize and sequelize-cli globally, etc… still stuck with this error. Solved this by installing pg globally (npm install -g pg). Is that a new requirement ?