Jade template not found on Heroku

Running this Express app locally works. Running it on Heroku gives the pasted error when requesting either / or /nested

Error: Failed to lookup view "index"
    at Function.app.render (/app/node_modules/express/lib/application.js:493:17)
    at ServerResponse.res.render (/app/node_modules/express/lib/response.js:753:7)
    at /app/server.js:21:16
    at callbacks (/app/node_modules/express/lib/router/index.js:161:37)
    at param (/app/node_modules/express/lib/router/index.js:135:11)
    at pass (/app/node_modules/express/lib/router/index.js:142:5)
    at Router._dispatch (/app/node_modules/express/lib/router/index.js:170:5)
    at Object.router (/app/node_modules/express/lib/router/index.js:33:10)
    at next (/app/node_modules/express/node_modules/connect/lib/proto.js:199:15)
    at store.get.next (/app/node_modules/express/node_modules/connect/lib/middleware/session.js:309:9)

Error: Failed to lookup view "nested/index"
    at Function.app.render (/app/node_modules/express/lib/application.js:493:17)
    at ServerResponse.res.render (/app/node_modules/express/lib/response.js:753:7)
    at /app/server.js:24:16
    at callbacks (/app/node_modules/express/lib/router/index.js:161:37)
    at param (/app/node_modules/express/lib/router/index.js:135:11)
    at pass (/app/node_modules/express/lib/router/index.js:142:5)
    at Router._dispatch (/app/node_modules/express/lib/router/index.js:170:5)
    at Object.router (/app/node_modules/express/lib/router/index.js:33:10)
    at next (/app/node_modules/express/node_modules/connect/lib/proto.js:199:15)
    at store.get.next (/app/node_modules/express/node_modules/connect/lib/middleware/session.js:309:9)

In my server file:

express = require 'express'
app = express()

app.configure () ->

  app.set 'views', __dirname + '/views'
  app.set 'view engine', 'jade'

  app.use express.logger('dev')
  app.use express.bodyParser()
  app.use express.methodOverride()
  app.use express.cookieParser()
  app.use express.session(
    secret: 'WTF'
  )
  app.use app.router
  app.use express['static'](process.cwd() + '/public')

  app.get '/', (req, res) ->

    res.render 'index'

  app.get '/nested', (req, res) ->

    res.render 'nested/index'

port = process.env.PORT || 3000

app.listen port, () -> 
  console.log 'Server started on ' + port + '\nPress CTRL-C to stop server.'

Locally, I do not need to specify app.set 'views', __dirname + '/views' for the server to run and find the files - it does not work on Heroku with or without this.

Regarding your edit:

The issue may be case. While the strings specify lower-case paths:

The files are actually capitalized:

Your local system appears to be using a case-insensitive file system while Heroku does not.



To help Express find your views, you can set a 'views' root path:

app.set('views', __dirname + '/views');

You may also be able to pass an absolute path to res.render():

res.render(__dirname + '/views/admin/login');

Also note that you probably don't need (and may not want) to pass req and res to res.render():

app.get('/admin/login', function (req, res) {
    res.render('admin/login');
});

With them, the properties of req will be included as locals in the view and res as the callback will either be ignored or cause an error since it's not a function.