sequelize.js - You need to install mysql package manually

Question

After installing node.js and sequelize.js, and running a basic test, the message "You need to install mysql package manually" is displayed.

I've tried searching the web and Stackoverflow for the cause of this message.

I have installed:

Answer 1

You need to install the mysql npm module:

npm install mysql

The reason sequelize doesn't have the mysql module as its own dependency is because it can be used with other databases such as postgres or sqlite.

Answer 2

This solved problem:

npm install -g mysql