I an trying to host my Django application on Heroku.
My log says "No web processes running", so I tried to scale up my web dynos by running heroku ps:scale web=1. Unfortunately, this gave a new error:
Scaling dynos...! ! Couldn't find that process type (web)
I have defined a web process in my Procfile:
��web : gunicorn grouppublishingindia.wsgi --log-file -
Here are the runtime logs:
2021-01-29T19:05:21.512000+00:00 heroku[run.6267]: Starting process with command `python manage.py migrate`
2021-01-29T19:05:29.245349+00:00 heroku[run.6267]: Process exited with status 0
2021-01-29T19:05:29.281276+00:00 heroku[run.6267]: State changed from up to complete
2021-01-29T19:12:55.201869+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=grouppublishingindia.herokuapp.com request_id=1cd6be75-9711-4890-ac37-542c02731f37 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:13:01.315149+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=9cb635ac-f755-437c-9706-b956967f9f32 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:14:17.641461+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=grouppublishingindia.herokuapp.com request_id=d8ed6b4d-3fe4-4c3a-95d7-fc1a4bc7cd52 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:14:20.774568+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=61570fe1-d1d3-41d0-846d-8f482e9f8bfe fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:16:09.470063+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=grouppublishingindia.herokuapp.com request_id=19bd2fb7-9739-4a80-b881-759f36c0e5b6 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:16:13.909655+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=321e5a3a-798a-42ce-a9ab-39786097717f fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:25:36.896690+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=grouppublishingindia.herokuapp.com request_id=13206d28-14c4-4fc1-b57a-2d6b82ab05c9 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:25:38.638019+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=307e0608-6e83-480a-98f5-bf1454408672 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:25:47.279682+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/admin" host=grouppublishingindia.herokuapp.com request_id=309fce6e-4834-4560-b7e0-3895ccdb90d3 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:25:48.583128+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=a1d0de6a-182e-4aca-83b4-e8ebdee8261f fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:26:09.418186+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/admin/login" host=grouppublishingindia.herokuapp.com request_id=7f80cab5-bdc8-4097-83b9-12151a53ce48 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:26:10.777570+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=94b74270-ce45-4bdb-9554-1d18278df029 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:28:40.734847+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/admin/login" host=grouppublishingindia.herokuapp.com request_id=6d20d9fa-e28e-4e1f-8d6d-373d1a4b376c fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:28:42.085017+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=7fc8b4fa-87d9-4e17-9bac-5ecf4f5074be fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:28:56.508972+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=grouppublishingindia.herokuapp.com request_id=4abf5e65-d489-4012-8f31-c252eba7b52a fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:28:57.316760+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=9a96ef97-5e10-428a-a200-99e5b5a15d97 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:33:52.810241+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=grouppublishingindia.herokuapp.com request_id=c6d4e435-d6cc-4108-a773-878f3456cd7b fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T19:33:54.091221+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=31539be1-c151-4eed-859b-6dec7af9233c fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T20:17:16.061323+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=grouppublishingindia.herokuapp.com request_id=37e1cc44-bb1e-4b13-b4ef-09409de1d34d fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T20:17:17.915649+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=eb2cb4a9-6313-431a-a36e-2653f68787ea fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T20:40:54.627487+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=grouppublishingindia.herokuapp.com request_id=070ea498-6e5d-4712-984e-a7d5cbd27105 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T20:40:55.709483+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=7631e771-5802-4f2d-8a61-a4b308b2b985 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T20:42:53.761946+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=grouppublishingindia.herokuapp.com request_id=33998968-5c6c-48a0-b393-1b4d0d6545a4 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
2021-01-29T20:42:54.387231+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=grouppublishingindia.herokuapp.com request_id=ad62faad-3231-4fe8-89e4-2c0188627923 fwd="103.252.25.76" dyno= connect= service= status=503 bytes= protocol=https
And here are my settings, in case they help:
"""
Django settings for grouppublishingindia project.
Generated by 'django-admin startproject' using Django 3.1.1.
For more information on this file, see
https://docs.djangoproject.com/en/3.1/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.1/ref/settings/
"""
import os
from pathlib import Path
# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent
TEMPLATE_DIR = os.path.join(BASE_DIR,'templates')
EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_USE_TLS = True
EMAIL_HOST_USER = 'grouppublishingindiaoffice#gmail.com'
EMAIL_HOST_PASSWORD = os.environ.get('EMAIL_HOST_PASSWORD')
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.1/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = **************************************
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = False
ALLOWED_HOSTS = ['grouppublishingindia.herokuapp.com','.grouppublishingindia.com']
# Application definition
INSTALLED_APPS = [
'django.contrib.auth',
'Inventory',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'crispy_forms',
'debug_toolbar',
'import_export',
'django.contrib.admin',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'debug_toolbar.middleware.DebugToolbarMiddleware'
]
CRISPY_TEMPLATE_PACK = "bootstrap4"
ROOT_URLCONF = 'grouppublishingindia.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, 'templates')],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'grouppublishingindia.wsgi.application'
# Database
# https://docs.djangoproject.com/en/3.1/ref/settings/#databases
DATABASES = {
'default':{
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
}
}
import dj_database_url
db_from_env = dj_database_url.config()
DATABASES['default'].update(db_from_env)
#DATABASES['default']['CONN_MAX_AGE'] = 500
# Password validation
# https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]
# Internationalization
# https://docs.djangoproject.com/en/3.1/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.1/howto/static-files/
STATIC_URL = '/static/'
LOGIN_REDIRECT_URL = "contenu"
#SMTP (Simple Mail Transfert Protcole) Configuration
CORS_REPLACE_HTTPS_REFERER = True
HOST_SCHEME = "https://"
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
SECURE_SSL_REDIRECT = True
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = True
SECURE_HSTS_INCLUDE_SUBDOMAINS = True
SECURE_HSTS_SECONDS = 1000000
SECURE_FRAME_DENY = True
The error states no web process is running (code H14)
There are two possibilities for this issue:
You have scaled down the number of web dynos to 0.
To solve this problem, simply run on your terminal: heroku ps:scale web=1 or heroku ps:scale web=1 -a [name of your heroku app] (if you have multiple apps.
You did not define a web process in your Procfile.
You need to define at the root of your Django project a file called Procfile that will describe your web processes and worker processes.
This file should look like this:
release: ./release.sh
web: gunicorn config.wsgi
worker: celery worker --app config.celery.app
In your case, it will probably be as simple as:
web: gunicorn {name-of-your-project}.wsgi
the WSGI.py is a file located within your project folder
Make sure to go through the Django configuration on Heroku documentation as you will need to install the python package for django-heroku and gunicorn.
Your Procfile has some weird encoding:
��web : gunicorn grouppublishingindia.wsgi --log-file -
Those � characters shouldn't be there. Please edit it to contain only
web: gunicorn grouppublishingindia.wsgi --log-file -
then save it with UTF-8 encoding. Commit that change and redeploy.
I have been trying to deploy an app to Heroku
it has been deployed but says application error
LOGS:-
2020-10-06T04:14:51.490040+00:00 heroku[web.1]: Starting process with command `gunicorn great-usernames:wsgi`
2020-10-06T04:14:53.853073+00:00 app[web.1]: bash: gunicorn: command not found
2020-10-06T04:14:53.889337+00:00 heroku[web.1]: Process exited with status 127
2020-10-06T04:14:53.928653+00:00 heroku[web.1]: State changed from starting to crashed
2020-10-06T04:15:00.441714+00:00 heroku[router]: at=info code=H81 desc="Blank app" method=GET path="/" host=gg-usernames.herokuapp.com request_id=508d3db8-7a0b-4469-b22c-124117a6ffa9 fwd="49.37.6.95" dyno= connect= service= status=502 bytes= protocol=https
2020-10-06T04:15:00.982496+00:00 heroku[router]: at=info code=H81 desc="Blank app" method=GET path="/favicon.ico" host=gg-usernames.herokuapp.com request_id=d644c379-098b-4b37-927b-2578ca65537b fwd="49.37.6.95" dyno= connect= service= status=502 bytes= protocol=https
2020-10-06T04:15:14.860562+00:00 heroku[router]: at=info code=H81 desc="Blank app" method=GET path="/" host=gg-usernames.herokuapp.com request_id=d2de73e7-9a89-453b-9e5f-0942f22e3ee6 fwd="49.37.6.95" dyno= connect= service= status=502 bytes= protocol=https
2020-10-06T04:15:15.333167+00:00 heroku[router]: at=info code=H81 desc="Blank app" method=GET path="/favicon.ico" host=gg-usernames.herokuapp.com request_id=43020ef1-b277-40a7-8555-2b71418f1917 fwd="49.37.6.95" dyno= connect= service= status=502 bytes= protocol=https
2020-10-06T04:16:38.957562+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=gg-usernames.herokuapp.com request_id=97723735-ca99-4b00-818d-c36ac77867d6 fwd="49.37.6.95" dyno= connect= service= status=503 bytes= protocol=https
2020-10-06T04:16:39.649714+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=gg-usernames.herokuapp.com request_id=ca46ab12-0bf2-4e71-b3d5-f6760fd040d1 fwd="49.37.6.95" dyno= connect= service= status=503 bytes= protocol=https
2020-10-06T04:21:08.498502+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=gg-usernames.herokuapp.com request_id=0a99c7bf-2a90-4bba-bbf1-46fc85bd3cc7 fwd="49.37.6.95" dyno= connect= service= status=503 bytes= protocol=https
2020-10-06T04:21:09.153869+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=gg-usernames.herokuapp.com request_id=ed12acab-3296-4a09-b7fe-7b1f8fbcb25f fwd="49.37.6.95" dyno= connect= service= status=503 bytes= protocol=https
thanks in advance
Specify gunicorn and version in the requirements.txt
gunicorn==20.0.4
So I deployed my third app to heroku but to my surprise the app is not working, it's the first time when I get this kind of error:
code=H10 desc="App crashed"
At first I forgot to set my port variable like this: const port = process.env.PORT || 5000;
And then listen to it like this:
server.listen(port, () => {
console.log('Server is runing on port 5000');
});
But even when I set up port variable I still get the same error and I don't know what can cause this error.
2018-10-04T15:12:29.405064+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=m-o-d.herokuapp.com request_id=430f142b-4820-410b-865b-cc6bffae2fa5 fwd="195.12.167.97" dyno= connect= service= status=503 bytes= protocol=https
2018-10-04T15:12:29.654458+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=m-o-d.herokuapp.com request_id=30ff6c29-f7c3-4350-aaff-4bc22f823dd8 fwd="195.12.167.97" dyno= connect= service= status=503 bytes= protocol=https
App works when I run it in my localhost like this: npm start
2018-10-04T17:09:24.933184+00:00 app[web.1]: npm ERR! Failed at the mystery_of_dungeons#1.0.0 start script.
2018-10-04T17:09:24.921760+00:00 app[web.1]: at Function.Module._resolveFilename (module.js:542:15)
2018-10-04T17:09:24.921763+00:00 app[web.1]: at require (internal/module.js:11:18)
2018-10-04T17:09:24.921766+00:00 app[web.1]: at Module._compile (module.js:641:30)
I have deployed my Node.js bot to heroku using the cli. WHen I try to open the app, it crashes with this error in log:
2018-02-20T12:34:24.132994+00:00 app[web.1]: npm ERR! drvinebot#1.0.0 start: `node app.js`
2018-02-20T12:34:24.133186+00:00 app[web.1]: npm ERR! Exit status 1
2018-02-20T12:34:24.133463+00:00 app[web.1]: npm ERR!
2018-02-20T12:34:24.133682+00:00 app[web.1]: npm ERR! Failed at the
drvinebot#1.0.0 start script.
2018-02-20T12:34:24.133887+00:00 app[web.1]: npm ERR! This is probably not a
problem with npm. There is likely additional logging output above.
2018-02-20T12:34:56.072459+00:00 heroku[router]: at=error code=H10 desc="App
crashed" method=GET path="/" host=drvinebot.herokuapp.com
request_id=8bf3595c-2ff8-4950-828c-0668e86e92bb fwd="106.203.157.18" dyno=
connect= service= status=503 bytes= protocol=https
2018-02-20T12:34:57.812751+00:00 heroku[router]: at=error code=H10 desc="App
crashed" method=GET path="/favicon.ico" host=drvinebot.herokuapp.com
request_id=f716154a-35e7-446d-b05d-bca3bc26c06c fwd="106.203.157.18" dyno=
connect= service= status=503 bytes= protocol=https
2018-02-20T12:35:43.707329+00:00 heroku[router]: at=error code=H10 desc="App
crashed" method=GET path="/" host=drvinebot.herokuapp.com
request_id=b0b38a2c-8164-44ca-bdf7-1f426bb327b3 fwd="106.203.157.18" dyno=
connect= service= status=503 bytes= protocol=https
2018-02-20T12:35:45.472294+00:00 heroku[router]: at=error code=H10 desc="App
crashed" method=GET path="/favicon.ico" host=drvinebot.herokuapp.com
request_id=44814f37-d547-49c3-9cb4-d2454cedcb29 fwd="106.203.157.18" dyno=
connect= service= status=503 bytes= protocol=https
2018-02-20T12:41:11.946966+00:00 heroku[router]: at=error code=H10 desc="App
crashed" method=GET path="/" host=drvinebot.herokuapp.com
request_id=af3e6bff-32d0-4a7a-8a72-b847d8b5b642 fwd="106.203.191.138" dyno=
connect= service= status=503 bytes= protocol=https
2018-02-20T12:41:13.583622+00:00 heroku[router]: at=error code=H10 desc="App
crashed" method=GET path="/favicon.ico" host=drvinebot.herokuapp.com
request_id=63f94976-a986-48cb-81c3-a46706f782dc fwd="106.203.191.138" dyno=
connect= service= status=503 bytes= protocol=https
Here's my package.json file:
"name": "drvinebot",
"version": "1.0.0",
"description": "",
"main": "app.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "node app.js"
},
"author": "Joseph Joey",
"license": "UNLICENSED",
"dependencies": {
"express": "^4.16.2",
"helmet": "^3.11.0",
"twit": "^2.2.9"
}
}
Previously, I was using nodemon and app still crashed, so I changed my procfile to this:
web: npm start
to start the server using npm scripts. I don't seem to understand what's wrong here. Can someone help me out?
Thanks.
I am building a NodeJS application using express here is my code:
var express = require('express');
var app = express();
var session = require('express-session');
var uuidv1 = require('uuid/v1');
require('dotenv').config();
var APIAI_TOKEN = process.env.APIAI_TOKEN;
var APIAI_SESSION_ID = uuidv1();
app.use(express.static(__dirname + '/views')); // html
app.use(express.static(__dirname + '/public')); // js, css, images
var server = require('http').createServer(app);
var port = process.env.port || 3000;
server.listen(port, function() {
console.log('Server listening at port: ', port);
// console.log(APIAI_SESSION_ID);
// console.log(APIAI_TOKEN);
});
app.use(session({
genid: function(req) {
return APIAI_SESSION_ID;
},
secret: 'secret',
saveUninitialized: true,
resave: true
}));
var io = require('socket.io')(server);
var apiai = require('apiai')(APIAI_TOKEN);
var rp = require('request-promise');
//#region Web UI
app.get('/', function(req, res) {
res.sendFile('index.html');
});
I start my app with node app and everything works perfectly on my localhost but when I deploy the app to Google App engine i get a 502 bad gateway error and when i check the log it happens at the app.get() method.
I even deployed it to Heroku server as well, the app is crashing at the same point. What could be wrong with my code?
Here is the log form Heroku server:
2017-11-01T16:35:57.528020+00:00 heroku[router]: at=error code=H10
desc="App crashed" method=GET path="/" host=ippcbot.herokuapp.com request_id=d956df30-8352-4a54-80e6-2aa1fc96276b fwd="197.210.37.211" dyno= connect= service= status=503 bytes= protocol=https
2017-11-01T16:35:58.138751+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=ippcbot.herokuapp.com request_id=96b2bf0d-df05-4d7e-9018-0b09e1dfa748 fwd="197.210.37.211" dyno= connect= service= status=503 bytes= protocol=https
Disconnected from log stream. There may be events happening that you do not see here! Attempting to reconnect...
2017-11-01T16:19:36.517868+00:00 app[web.1]: npm ERR! Please include the following file with any support request:
2017-11-01T16:19:36.513572+00:00 app[web.1]: npm ERR! There is likely additional logging output above.
2017-11-01T16:19:36.517927+00:00 app[web.1]: npm ERR! /app/npm-debug.log
2017-11-01T16:19:36.584087+00:00 heroku[web.1]: Process exited with status 1
2017-11-01T16:19:36.607609+00:00 heroku[web.1]: State changed from starting to crashed
2017-11-01T16:20:47.248202+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=ippcbot.herokuapp.com request_id=41e9f39b-e908-4cee-a430-0d7f44a17590 fwd="197.210.37.211" dyno= connect= service= status=503 bytes= protocol=https
2017-11-01T16:20:47.891459+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=ippcbot.herokuapp.com request_id=9f244daf-7a3e-405e-b445-2fadd8b2735b fwd="197.210.37.211" dyno= connect= service= status=503 bytes= protocol=https
2017-11-01T16:35:13.187594+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=ippcbot.herokuapp.com request_id=455ccd5e-e389-49be-b892-e5e222c9864f fwd="197.210.37.211" dyno= connect= service= status=503 bytes= protocol=https
2017-11-01T16:35:13.805998+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=ippcbot.herokuapp.com request_id=112a5f08-632e-463d-b8e8-ed6de13b3596 fwd="197.210.37.211" dyno= connect= service= status=503 bytes= protocol=https
2017-11-01T16:35:57.528020+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=ippcbot.herokuapp.com request_id=d956df30-8352-4a54-80e6-2aa1fc96276b fwd="197.210.37.211" dyno= connect= service= status=503 bytes= protocol=https
2017-11-01T16:35:58.138751+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=ippcbot.herokuapp.com request_id=96b2bf0d-df05-4d7e-9018-0b09e1dfa748 fwd="197.210.37.211" dyno= connect= service= status=503 bytes= protocol=https
Not sure about Heroku, but for App Engine does changing the port to 8080 work?
For example:
const server = app.listen(8080, () => {
const host = server.address().address;
const port = server.address().port;
console.log(`Example app listening at http://${host}:${port}`);
});
From Run Express.js on Google App Engine Flexible Environment