Web App on Heroku - Web process failed to bind to $PORT within 60 seconds of launch

Has anyone deployed a web app to Heroku? I’ve been trying for a while to get my Ionic web app live on Heroku. I’ve followed some tutorials but get the same result. “Web process failed to bind to $PORT within 60 seconds of launch” I’ve followed these tutorials:

Also I’ve searched a lot on stack overflow and none of the solutions on here have helped me out yet.

Here is my server.js at the root of my project

var express  = require('express');
var app = express();                               
var morgan = require('morgan');            
var bodyParser = require('body-parser');    
var cors = require('cors');
var path = require('path');

const PORT = process.env.PORT || 5000


app.use(function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header('Access-Control-Allow-Methods', 'DELETE, PUT');
  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");

app.use(express.static(path.resolve(__dirname, "www")));
app.set('port', PORT);
app.listen(app.get('port'), function() {
 console.log("listening to Port", app.get("port"));

And here is my Procfile:

web: npm run build && npm start

I’m not sure what other files to include so just let me know what to add to the post. Thanks in advance.

I followed the same tutorials and am getting the same response as you. Hopefully somebody here can help.

Not really a solution but Firebase offered me exactly what I was using heroku for and was a lot easier to set up, so I deployed it there. I followed this video.