Why can't project be pushed to Heroku?

Question

Push the project to heroku according to the tutorial. The previous steps went smoothly without any errors. Until a problem occurred here, no solution was found online. . .

It seems that there is something wrong with the setting.py, but it is the same as in the tutorial:

heroku settings

if os.getcwd()=='/app':

import dj_database_url
DATABASES={
    'default':dj_database_url.config(default='postgres://localhost')
}

SECURY_PROXY_SSL_HEADER=('HTTP_X_FORWARDED_PROTO','https')

ALLOWED_HOSTS = ['*']

BASE_DIR = os.path.dirname(os.path.abspath(__file__))
STATIC_ROOT = 'staticfiles'
STATICFILES_DIRS = (
    os.path.join(BASE_DIR, 'static'),
)

Command line error:

(ll_env) G:python_dorest>heroku create
Creating app... done, protected-crag-1803
https://protected-crag-1803.h... | https://git .heroku.com/protec...

(ll_env) G:python_dorest>git push heroku master
Counting objects: 48, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (39/39), done .
Writing objects: 100% (48/48), 11.18 KiB | 0 bytes/s, done.
Total 48 (delta 3), reused 0 (delta 0)
remote: Compressing source files. .. done.
remote: Building source:
remote:
remote: -----> Python app detected
remote: -----> Installing python-3.5.2

————————The middle content is omitted——————————

remote: Running setup.py install for django-bootstrap3: started
remote: Running setup.py install for django-bootstrap3: finished with status 'done'
remote: Successfully installed Django-1.11.2 dj-database-url-0.4.2 dj-static-0.0.6 django-bootstrap3-8.2.3 gunicorn-19.7.1 psycopg2-2.7.1 pytz-2017.2 static3-0.7.0
remote:
remote: -----> $ python manage.py collectstatic --noinput
remote: Traceback (most recent call last):
remote: File "manage.py", line 22, in <module>
remote: execute_from_command_line(sys.argv)
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
remote: utility.execute()
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/core/management/__init__.py", line 355, in execute
remote: self.fetch_command(subcommand).run_from_argv(self.argv)
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/core/management/base.py", line 283, in run_from_argv
remote: self.execute(args, *cmd_options)
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/core/management/base.py", line 330, in execute
remote: output = self.handle(args, *options)
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 199, in handle
remote: collected = self.collect()
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 124, in collect
remote: handler(path, prefixed_path, storage)
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 354, in copy_file
remote: if not self.delete_file(path, prefixed_path, source_storage):
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 260, in delete_file
remote: if self.storage.exists(prefixed_path):
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/core/files/storage.py", line 392, in exists
remote: return os.path.exists(self.path(name))
remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/contrib/staticfiles/storage.py", line 50, in path
remote: raise ImproperlyConfigured("You're using the staticfiles app "
remote: django.core.exceptions.ImproperlyConfigured: You're using the staticfiles app without having set the STATIC_ROOT setting to a filesystem path.
remote:
remote: ! Error while running '$ python manage.py collectstatic --noinput'.
remote: See traceback above for details.
remote:
remote: You may need to update application code to resolve this error.
remote: Or, you can disable collectstatic for this application:
remote:
remote: $ heroku config:set DISABLE_COLLECTSTATIC=1
remote:
remote: https://devcenter.heroku.com/...
remote: ! Push rejected, failed to compile Python app.
remote:
remote: ! Push failed
remote: Verifying deploy...
remote:
remote: ! Push rejected to protected-crag-1803.
remote:
To https://git.heroku.com/protec...
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/protec...'

Answer 1

Read the error log carefully:

remote: File "/app/.heroku/python/lib/python3.5/site-packages/django/contrib/staticfiles/storage.py", line 50, in path
remote: raise ImproperlyConfigured("You're using the staticfiles app "
remote: django.core.exceptions.ImproperlyConfigured: You're using the staticfiles app without having set the STATIC_ROOT setting to a filesystem path.