from .base_settings import *
import dj_database_url
import os

ALLOWED_HOSTS = ['0.0.0.0']

db_from_env = dj_database_url.config(conn_max_age=500)
DATABASES['default'].update(db_from_env)

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.9/howto/static-files/

PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))

STATIC_ROOT = os.path.join(PROJECT_ROOT, 'static')
STATIC_URL = '/static/'

# Simplified static file serving.
# https://warehouse.python.org/project/whitenoise/

STATICFILES_STORAGE = 'whitenoise.django.GzipManifestStaticFilesStorage'

from .base_settings import *
import dj_database_url
import os

ALLOWED_HOSTS = ['0.0.0.0']

db_from_env = dj_database_url.config(conn_max_age=500)
DATABASES['default'].update(db_from_env)

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.9/howto/static-files/

PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))

STATIC_ROOT = os.path.join(PROJECT_ROOT, 'static')
STATIC_URL = '/static/'

# Extra places for collectstatic to find static files.
STATICFILES_DIRS = (
    os.path.join(PROJECT_ROOT, 'static'),
)

# Simplified static file serving.
# https://warehouse.python.org/project/whitenoise/

STATICFILES_STORAGE = 'whitenoise.django.GzipManifestStaticFilesStorage'

--- 
+++ 
@@ -15,11 +15,6 @@
 STATIC_ROOT = os.path.join(PROJECT_ROOT, 'static')
 STATIC_URL = '/static/'
 
-# Extra places for collectstatic to find static files.
-STATICFILES_DIRS = (
-    os.path.join(PROJECT_ROOT, 'static'),
-)
-
 # Simplified static file serving.
 # https://warehouse.python.org/project/whitenoise/
 
Fix The STATICFILES_DIRS setting should not contain the STATIC_ROOT setting
