Expressjs not loading stylesheets on heroku, giving 500 error

Question

I\'m running an Expressjs installation on heroku, and it\'s not loading the stylesheets.

I hit ctrl+u and then click on the stylesheet link, and get this error:

Answer 1

I was able to solve this by specifying the engine dependencies in the package.json

{
  "name": "app-name",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node app"
  },
  "dependencies": {
    "express": "3.0.0rc1",
    "jade": "*",
    "stylus": "*"
  },
  "engines": {
    "node": "0.8.4",
    "npm": "1.1.41"
  }
}

Answer 2

I found the answer！ you got a wrong runtime of the application push to the cloud you can do this

vmc push yourappname --runtime node08

i hope i can help you

Answer 3

I just had the same problem and found that running the following command (via Heroku CLI) worked for me:

heroku config:add NODE_ENV=production

This was in conjunction with specifying the versions of Node and NPM as Silas mentioned.

(via http://quickleft.com/blog/getting-started-with-express-in-node)