Error installing jade on heroku

I get an error when pushing my node.js-app to Heroku. It used to work, but now, for some reason, it's failing.

When I push to Heroku I get the following:

-----> Node.js app detected
-----> Resolving engine versions
   Using Node.js version: 0.6.13
   Using npm version: 1.1.4
-----> Fetching Node.js binaries
-----> Vendoring node into slug
-----> Installing dependencies with npm
   npm http GET https://registry.npmjs.org/express/2.5.9
   npm http GET https://registry.npmjs.org/jade/0.15.4
   npm http 200 https://registry.npmjs.org/jade/0.15.4
   npm http GET https://registry.npmjs.org/jade/-/jade-0.15.4.tgz
   npm http 200 https://registry.npmjs.org/express/2.5.9
   npm http GET https://registry.npmjs.org/express/-/express-2.5.9.tgz
   npm http 200 https://registry.npmjs.org/jade/-/jade-0.15.4.tgz
   npm http 200 https://registry.npmjs.org/express/-/express-2.5.9.tgz
   npm ERR! error installing jade@0.15.4

   npm ERR! Refusing to delete: /tmp/build_dzqaws2o7lx4/node_modules/.bin/jade not in /tmp/build_dzqaws2o7lx4/node_modules/jade
   npm ERR! File exists: /tmp/build_dzqaws2o7lx4/node_modules/.bin/jade
   npm ERR! Move it away, and try again.
   npm ERR!
   npm ERR! System Linux 2.6.32-348-ec2
   npm ERR! command "/tmp/node-node-HkEc/bin/node" "/tmp/node-npm-X5Wz/cli.js" "install" "--production"
   npm ERR! cwd /tmp/build_dzqaws2o7lx4
   npm ERR! node -v v0.6.13
   npm ERR! npm -v 1.1.4
   npm ERR! path /tmp/build_dzqaws2o7lx4/node_modules/.bin/jade
   npm ERR! code EEXIST
   npm ERR! message Refusing to delete: /tmp/build_dzqaws2o7lx4/node_modules/.bin/jade not in /tmp/build_dzqaws2o7lx4/node_modules/jade
   npm ERR! errno {}
   npm http GET https://registry.npmjs.org/connect
   npm http GET https://registry.npmjs.org/mime/1.2.4
   npm http GET https://registry.npmjs.org/qs
   npm http GET https://registry.npmjs.org/mkdirp/0.3.0
   npm ERR!
   npm ERR! Additional logging details can be found in:
   npm ERR!     /tmp/build_dzqaws2o7lx4/npm-debug.log
   npm not ok
 !     Failed to install --production dependencies with npm
 !     Heroku push rejected, failed to compile Node.js app

My package.json is ats follows:

{
  "name": "myAppName",
  "version": "0.0.1",
  "dependencies": {
      "express": "2.5.9",
      "mongoose":"3.5.2",
      "jade": "0.15.4",
      "ejs": "0.7.1"
      },
  "engines": {
    "node": "0.6.13",
    "npm": "1.1.4"
  }
}

Because it says "Refusing to delete:..." I thought it might have been a freak error on Heroku, so I tried to push it to a new Heroku-app, but I get the same error.

Any ideas as to what is wrong? Is it my versions? Everything runs fine locally (windows). Any help will be appreciated.

You are using an old node.js. Try adding the following to package.json:

  "engines": {
        "node": "0.8.x",
        "npm": "1.1.x"
  },

You can inspect thing more closely by logging in on the system. First you need to install Heroku Toolbelt (if you haven't already). Then:

heroku login

and

heroku run bash --app yourapp

This will give you a bash to your heroku installation. Navigate to /tmp (cd /tmp) and see what's left there. Try to remove it manually (rm -rf whatisleft).

Your jade version is out of date too (still). My heroku install with jade has:

"jade": "*"

Lastly, don't add node_modules to source control. So add it to your .gitignore file.