### Author:  [@enjoysmath](https://forum.djangoproject.com/u/enjoysmath)
#### Post date: [January 11, 2022, 1:48am UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/1 "2022-01-11T01:48:46Z")
Here is the broken site & error page:
[Abstract Spacecraft](https://abstract-spacecraft.herokuapp.com/)
The site works perfectly as it does locally when DEBUG = True. I have an ON\_HEROKU=1 config variable set through the Heroku dashboard for the app, which causes the branch in settings.py to set DEBUG = False.
I tried setting it back to DEBUG = True, and everything else the same, and the site then works.
Here is my `settings.py`:
```auto
"""
Django settings for abstract_spacecraft project.
Generated by 'django-admin startproject' using Django 3.1.5.
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/
"""
from pathlib import Path
import os
import django_heroku
import dj_database_url
# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path( __file__ ).resolve().parent.parent
SITE_ROOT = os.path.dirname(os.path.dirname(os.path.realpath( __file__ )))
SETTINGS_PATH = os.path.dirname(os.path.dirname( __file__ ))
# 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 = os.environ.get('SECRET_KEY', 'TODO: use secret key in deployment')
# SECURITY WARNING: don't run with debug turned on in production!
if os.environ.get('ON_HEROKU', '0') == '0':
DEBUG = True
else:
DEBUG = False
# SECURITY WARNING: don't run with debug turned on in production!
#DEBUG = True # TODO comment out
ALLOWED_HOSTS = [
'dc166c4c.databases.neo4j.io',
'abstract-spacecraft.herokuapp.com',
'127.0.0.1',
]
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'accounts.apps.AccountsConfig',
'whitenoise.runserver_nostatic',
'django_bootstrap5',
'cd_editor.apps.CdEditorConfig',
'database.apps.DatabaseConfig',
'django_neomodel',
]
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',
'whitenoise.middleware.WhiteNoiseMiddleware',
]
ROOT_URLCONF = 'abstract_spacecraft.urls'
TEMPLATES_PATH = os.path.join(SETTINGS_PATH, 'templates')
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [TEMPLATES_PATH,
os.path.join(TEMPLATES_PATH, 'abstract_spacecraft'),
os.path.join(TEMPLATES_PATH, 'accounts'),
os.path.join(TEMPLATES_PATH, 'cd_editor'),
os.path.join(TEMPLATES_PATH, 'database')],
'APP_DIRS': True,
'OPTIONS': {
'debug': True,
'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 = 'abstract_spacecraft.wsgi.application'
# Database
# https://docs.djangoproject.com/en/3.1/ref/settings/#databases
# TODO: try out PostgreSQL in production, i.e. change True to the commented out code;
if os.environ.get('ON_HEROKU', '0') == '0':
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
}
else:
DATABASES = {
# TODO: what does this max_age setting do?
'default' : dj_database_url.config(conn_max_age=600)
}
# 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/'
STATICFILES_DIRS = (
os.path.join(SITE_ROOT, 'static/'),)
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
def neo4j_url():
url = os.environ.get('NEO4J_SCHEMA', 'bolt') + "://"
url += os.environ.get('NEO4J_USERNAME', 'neo4j') + ":"
url += os.environ.get('NEO4J_PASSWORD', 'fusion123') + "@"
url += os.environ.get('NEO4J_HOST', 'localhost') + ":"
url += os.environ.get('NEO4J_PORT', '7687')
return url
NEOMODEL_NEO4J_BOLT_URL = neo4j_url()
NEOMODEL_SIGNALS = True
NEOMODEL_FORCE_TIMEZONE = False
NEOMODEL_ENCRYPTED_CONNECTION = False # TODO: how do we switch this on without error?
from neomodel import config # BUGFIX: had to do it this way
config.MAX_POOL_SIZE = 50 # TODO: what does this affect?
#LOGIN_REDIRECT_URL = 'home'
#LOGOUT_REDIRECT_URL = 'home'
# TODO: Enable Click-jacking protection
X_FRAME_OPTIONS = 'ALLOW' # ie set this to "DENY"
# https://docs.djangoproject.com/en/1.11/ref/clickjacking/
MAX_TEXT_LENGTH = 80
MAX_USERNAME_LENGTH = 50
MAX_PASSWORD_LENGTH = 50
MAX_USER_EDIT_DIAGRAMS = 8
MAX_BAD_CONN_RETRIES = 5
#MESSAGE_STORAGE = 'django.contrib.messages.storage.session.SessionStorage'
LOGGING = {
'version': 1,
'disable_existing_loggers': False,
'handlers': {
'console': {
'class': 'logging.StreamHandler',
},
},
'loggers': {
'django': {
'handlers': ['console'],
'level': os.getenv('DJANGO_LOG_LEVEL', 'DEBUG'),
},
},
}
# Activate Django-Heroku.
django_heroku.settings(locals())
```
The last part about LOGGING didn’t seem to do anything because I don’t see any extra logs or messages to the console anywhere on Heroku.
---
### Author:  [@fabtjar](https://forum.djangoproject.com/u/fabtjar)
#### Post date: [January 11, 2022, 2:20pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/2 "2022-01-11T14:20:42Z")
Have you tried testing locally with `DEBUG = False`?
---
### Author:  [@enjoysmath](https://forum.djangoproject.com/u/enjoysmath)
#### Post date: [January 11, 2022, 3:52pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/3 "2022-01-11T15:52:02Z")
@fabtjar I get the following error message, which is having to do with static files. However, I tried changing the
```auto
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
```
line to
```auto
STATICFILES_STORAGE = 'whitenoise.storage.CompressedStaticFilesStorage'
```
and it’s the same error, an error that gets thrown while reading a template of mine.
```auto
File "C:\Python39\Lib\site-packages\django\contrib\staticfiles\storage.py", line 147, in url
return self._url(self.stored_name, name, force)
File "C:\Python39\Lib\site-packages\django\contrib\staticfiles\storage.py", line 126, in _url
hashed_name = hashed_name_func(*args)
File "C:\Python39\Lib\site-packages\django\contrib\staticfiles\storage.py", line 417, in stored_name
raise ValueError("Missing staticfiles manifest entry for '%s'" % clean_name)
builtins.ValueError: Missing staticfiles manifest entry for 'bootstrap\css\bootstrap.min.css'
During handling of the above exception, another exception occurred:
File "C:\Python39\Lib\threading.py", line 930, in _bootstrap
self._bootstrap_inner()
File "C:\Python39\Lib\threading.py", line 973, in _bootstrap_inner
self.run()
File "C:\Python39\Lib\threading.py", line 910, in run
self._target(*self._args, **self._kwargs)
File "C:\Python39\Lib\socketserver.py", line 683, in process_request_thread
self.finish_request(request, client_address)
File "C:\Python39\Lib\socketserver.py", line 360, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "C:\Python39\Lib\socketserver.py", line 747, in __init__
self.handle()
File "C:\Python39\Lib\wsgiref\handlers.py", line 137, in run
self.result = application(self.environ, self.start_response)
File "C:\Python39\Lib\site-packages\whitenoise\middleware.py", line 59, in __call__
response = self.get_response(request)
File "C:\Python39\Lib\site-packages\whitenoise\middleware.py", line 59, in __call__
response = self.get_response(request)
\Wing Pro 7.2/resources/icons/bookmarks_excpanel.png) File "C:\Users\FruitfulApproach\Desktop\abstract_spacecraft\database-of-proofs-engine\accounts\views.py", line 19, in sign_up
return render(request, 'sign_up.html', {'form': form})
\Wing Pro 7.2/resources/icons/bookmarks_excpanel.png) File "c:\users\fruitfulapproach\desktop\abstract_spacecraft\database-of-proofs-engine\templates\accounts\sign_up.html", line (257, 303), in
b'{% static "bootstrap\\css\\bootstrap.min.css" %}'
builtins.StopIteration
```
I also tried the solution here:
[SO answer](https://stackoverflow.com/a/41971081/7076615)
and 3 other answers on StackOverflow, but same issues - either Server 500 (on heroku) or the above error (local).
I did run `python manage.py collectstatic` before running locally, and deploying to Heroku does this for you.
---
### Author:  [@fabtjar](https://forum.djangoproject.com/u/fabtjar)
#### Post date: [January 11, 2022, 5:15pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/4 "2022-01-11T17:15:35Z")
Does it error when you collect static locally? Can you show the sign up html page where you use the static CSS file?
---
### Author:  [@enjoysmath](https://forum.djangoproject.com/u/enjoysmath)
#### Post date: [January 11, 2022, 5:38pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/5 "2022-01-11T17:38:43Z")
@fabtjar yes, still errors when collecting static locally. I get:
> # Not Found
>
> The requested resource was not found on this server.
> When I direct browser to domain/sign-in
The full code is here:
[Github Repo](https://github.com/enjoysmath/DatabaseOfProofsEngine)
---
### Author:  [@fabtjar](https://forum.djangoproject.com/u/fabtjar)
#### Post date: [January 11, 2022, 5:50pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/6 "2022-01-11T17:50:08Z")
I mean the source for the html page. Are you sure the path to the CSS is correct?
---
### Author:  [@enjoysmath](https://forum.djangoproject.com/u/enjoysmath)
#### Post date: [January 11, 2022, 6:42pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/7 "2022-01-11T18:42:02Z")
@fabtjar if it’s correct in development mode, it ought to be correct in production mode! 🙂
---
### Author:  [@fabtjar](https://forum.djangoproject.com/u/fabtjar)
#### Post date: [January 11, 2022, 6:58pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/8 "2022-01-11T18:58:27Z")
I was asking because the error message shows ‘bootstrap\\css\\bootstrap.min.css’. I was just thinking are you using backslash because when you’re on Windows? I’m guessing Heroku’s server would be Linux.
---
### Author:  [@enjoysmath](https://forum.djangoproject.com/u/enjoysmath)
#### Post date: [January 11, 2022, 7:00pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/9 "2022-01-11T19:00:49Z")
@fabtjar this error is taken from local though (Windows). I’ll try editing the template…
---
### Author:  [@enjoysmath](https://forum.djangoproject.com/u/enjoysmath)
#### Post date: [January 11, 2022, 7:06pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/10 "2022-01-11T19:06:24Z")
Thank you for solving this! Windows (local) running likes this as well, probably something to do with whatever server Django uses for serving files, i.e. that it needs forward slashes. Will have to update my BootstrapStudio export script (how I made the Bootstrap5 templates).
---
### Author:  [@freiholtz](https://forum.djangoproject.com/u/freiholtz)
#### Post date: [September 1, 2022, 11:33am UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/11 "2022-09-01T11:33:46Z")
I have the same problem. Also on cPanel deploy. This comment helped med get closer to the answer. Stil investigating.
---
### Author:  [@Spha](https://forum.djangoproject.com/u/Spha)
#### Post date: [September 1, 2022, 4:18pm UTC](https://forum.djangoproject.com/t/server-500-error-only-when-deploying-to-heroku-with-debug-false/11493/12 "2022-09-01T16:18:10Z")
In case you’re wondering why static files and images don’t work when Debug = False:
[https://docs.djangoproject.com/en/4.1/howto/deployment/wsgi/modwsgi/#serving-files](https://docs.djangoproject.com/en/4.1/howto/deployment/wsgi/modwsgi/#serving-files)
I made images/static files be served by NGINX by configuring the config file like so:
**nginx/default.conf**
location: project root directory/nginx
```auto
upstream django {
server django_gunicorn:8000; #I want the nginx server to proxy for this server and port
}
server {
listen 80; #proxy listens on port 80
client_max_body_size 30M; # max upload file size
location / { #if it's not a static file, the request gets passed back to port 8000
proxy_pass http://django; #"django" is inferred from what the upstream name was defined as
}
location /home/APROOT/app/jb_quality_prj/static/ {
alias /static; # make nginx serve the static files
}
location /home/APPROOT/app/jb_quality_prj/media/ {
alias /media; # make nginx serve the media files
}
}
```
**nginx/Dockerfile**
location: project root directory/nginx
```auto
FROM nginx:1.19.0-alpine
COPY ./default.conf /etc/nginx/conf.d/default.conf
```