Using Heroku for a Node web application

Question

I am trying to set up a project on Heroku. I went through their tutorial for Node apps and I am now trying to use my repository to work on my web app. I have already created the project and it shows up on my Heroku dashboard but I can't push anything to it. This is the message I get every time:

remote: Compressing source files... done.
remote: Building source:
remote: 
remote: -----> Using set buildpack heroku/nodejs
remote: 
remote:  !     Push rejected, failed to detect set buildpack heroku/nodejs
remote: More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure
remote: 
remote: Verifying deploy...
remote: 
remote: !   Push rejected to your_web_app.

I've made sure the buildpack is set to nodejs. I used information from Heroku along with Heroku wrongly detecting my Node app as a Ruby app, but still I cannot deploy.

I also already went into the package.json file and added in my node version under the "engine" section. Why can't I deploy to Heroku still?

EDIT: Here is my package.json file:

{
  "name": "node",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "start": "node ./bin/www"
  },
  "dependencies": {
    "body-parser": "~1.13.2",
    "cookie-parser": "~1.3.5",
    "debug": "~2.2.0",
    "express": "~4.13.1",
    "jade": "~1.11.0",
    "morgan": "~1.6.1",
    "serve-favicon": "~2.3.0"
  },
  "engines": {
    "node": "5.7.0"
  }
}

@ZeeshanHassanMemon I just posted it. Sorry for the late response — Hippity Hoopla
– Hippity Hoopla, Commented Mar 7, 2016 at 17:07
@ZeeshanHassanMemon my procfile only has one line: web: node index.js I got this from going through the tutorial on heroku — Hippity Hoopla
– Hippity Hoopla, Commented Mar 7, 2016 at 17:35
i got it, it seems you made some changes in your app like added package.json later or something else that caused heroku buildpack confusion, heroku buildpacks:clear //will clear buildpack heroku buildpacks:set heroku/nodejs //will set correct buildpack — Zeeshan Hassan Memon
– Zeeshan Hassan Memon, Commented Mar 7, 2016 at 17:41

Hippity Hoopla · Accepted Answer · 2016-03-07 20:08:05Z

1

Ensure following things:

1- app has a package.json file in the root directory.

2- app has node version defined in package.json as:

"engines": {
    "node": "4.1.1"
  },

Edit: buildpacks fix,

heroku buildpacks:clear //clear buildpack

heroku buildpacks:set heroku/nodejs //set correct build pack for node.js app

OR

heroku buildpacks:set https://github.com/heroku/heroku-buildpack-nodejs -a your-app-name

edited Mar 7, 2016 at 20:08

Hippity Hoopla

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answered Mar 5, 2016 at 16:38

Zeeshan Hassan Memon

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3 Comments

Hippity Hoopla Over a year ago

Zeeshan, I do have a package.json file in the root directory and I just posted the contents in my original question. Why should I set node as version 4.1.1? When I run node --version I get v5.7.0 so that's why I have that instead of 4.1.1

Zeeshan Hassan Memon Over a year ago

please try updated answer and let me know if it works for you

Hippity Hoopla Over a year ago

This worked! I also have a couple things wrong with my git remote names but I got those worked out separately. These commands correctly set my buildpack.

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