Node.js Expres.js Heroku Toolbelt >Foreman Start - Error: write EINVAL

Question

This is the error I encountered with package.json when running foreman start with Heroku Toolbelt for Node.js

 \"dependencies\": 
{
    \"express\": \"~4.4.0         


        

Answer 1

I managed to fix this issue by changing express version to 3.2.6 as seen below

 "dependencies": 
{
    "express": "~3.2.6",
    "jade": "~1.3.1"
}

Then I deleted node_modules and did a npm install. Following this a foreman start works perfectly fine.

However I have no idea why it doesn't work when it runs on express 4 but it works when running on express 3.