title: Error 404 static files in django 2.0
body: <p>I'm trying to locate all my static files in django 2.0. But when i run the server only i got 404 errors</p>
  
  <p>this is my settings code</p>
  
  <pre><code>STATIC_URL = '/static/'
  STATIC_ROOT = '/var/www/example.com/static/'
  
  STATICFILES_DIRS = (
      os.path.join(BASE_DIR, "static"),
  )
  </code></pre>
  
  <p>and my url code</p>
  
  <pre><code>urlpatterns = [
      path('admin/', admin.site.urls),
      path('', include('naturalUser.urls'))
  ] + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
  </code></pre>
  
  <p>404 errors</p>
  
  <pre><code>[11/Feb/2018 00:45:11] "GET /static/bower_components/bootstrap/css/bootstrap.min.css HTTP/1.1" 404 1869
  [11/Feb/2018 00:45:11] "GET /static/internal/css/general.css HTTP/1.1" 404 1797
  [11/Feb/2018 00:45:11] "GET /static/internal/css/AdminLTE.min.css HTTP/1.1" 404 1812
  [11/Feb/2018 00:45:11] "GET /static/internal/css/skins/all-skins.min.css HTTP/1.1" 404 1833
  [11/Feb/2018 00:45:11] "GET /static/internal/js/adminlte.min.js HTTP/1.1" 404 1806
  [11/Feb/2018 00:45:11] "GET /static/bower_components/jquery/internal/jquery.min.js HTTP/1.1" 404 1863
  [11/Feb/2018 00:45:11] "GET /static/bower_components/bootstrap/internal/js/bootstrap.min.js HTTP/1.1" 404 1890
  [11/Feb/2018 00:45:11] "GET /static/bower_components/bootstrap/css/bootstrap.min.css HTTP/1.1" 404 1869
  [11/Feb/2018 00:45:11] "GET /static/internal/css/AdminLTE.min.css HTTP/1.1" 404 1812
  [11/Feb/2018 00:45:11] "GET /static/internal/css/general.css HTTP/1.1" 404 1797
  [11/Feb/2018 00:45:11] "GET /static/internal/css/skins/all-skins.min.css HTTP/1.1" 404 1833
  [11/Feb/2018 00:45:11] "GET /static/bower_components/jquery/internal/jquery.min.js HTTP/1.1" 404 1863
  [11/Feb/2018 00:45:11] "GET /static/bower_components/bootstrap/internal/js/bootstrap.min.js HTTP/1.1" 404 1890
  </code></pre>