Postgres dialecte ne travaillant pas dans sequelize -m

De course Sequelize -m

dans ma config.json

"development": {
    "username": "root",
    "password": null,
    "database": "**********",
    "dialect": "postgres",
    "protocol": "postgres",
    "port": 5432,
    "host": "127.0.0.1"
},

d'erreur:

sequelize -m
Loaded configuration file "config/config.json".
Using environment "development".

/usr/local/lib/node_modules/sequelize/lib/transaction-manager.js:10
    throw new Error("The dialect " + sequelize.getDialect() + " is not support
          ^
Error: The dialect postgres is not supported.
    at new module.exports (/usr/local/lib/node_modules/sequelize/lib/transaction-manager.js:10:11)
    at new module.exports.Sequelize (/usr/local/lib/node_modules/sequelize/lib/sequelize.js:128:31)
    at Object.<anonymous> (/usr/local/lib/node_modules/sequelize/bin/sequelize:225:27)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)
    at node.js:901:3

Est-il un problème dans ma config, ou quelque chose qui pourrait être le problème?

OriginalL'auteur pjbr | 2014-02-27