node.js on heroku: Error: Cannot find module 'csv'

Question

node.js on heroku: Error: Cannot find module 'csv'

I'm using a common node package 'csv' to do CSV parsing. It works great on my local mac, but not on heroku. In the "heroku log", I get Cannot find module 'csv'.

Yes, I have it in my package json file:

{
    "name":"rimes",
    "version":"0.0.1",
    "dependencies":{
    "sys":"",
    "url":"",
    "http":"",
    "querystring":"",
    "oauth":"0.9.10",
    "fs":"",
    "csv":"0.3.0",
    "request":"",
    "node-cache":"",
    "underscore":""
    }
}

and I require it in my app.js

var sys = require('sys'),
http = require('http'),
url = require('url'),
qs = require('querystring'),
OAuth= require('oauth').OAuth,
fs = require('fs'),
csv = require('csv'),
myreq = require('request'),
NodeCache = require('node-cache'),
us = require('underscore');

What can I do to fix this on heroku?

Thank you, ~Todd

node.js
csv
heroku

Answer 1

So when you require packages on node, you also need to install them in your node_modules folder. They must be in the node_modules folder as well as "required" in your code and declared in your "package.json."

If you go into your project directory (the file where package.json is located) and run:

npm install

it should install your missing dependencies in your 'node_modules' folder.

Then if you re-deploy your app to heroku it should work.