[ui] 'str' object has no attribute 'regex'

Using latest devstack, when accessing to horizon dashboard, the following error raised,
AttributeError at /
'str' object has no attribute 'regex'
Request Method: GET
Request URL: http://192.168.84.91/dashboard/
Django Version: 1.11.3
Exception Type: AttributeError
Exception Value:
'str' object has no attribute 'regex'
Exception Location: /usr/local/lib/python2.7/dist-packages/django/urls/resolvers.py in _populate, line 291
Python Executable: /usr/bin/python
Python Version: 2.7.12
Python Path:
['/opt/stack/horizon',
 '/opt/stack/horizon',
 '/opt/stack/keystone',
 '/opt/stack/glance',
 '/opt/stack/cinder',
 '/opt/stack/neutron',
 '/opt/stack/nova',
 '/opt/stack/python-vitrageclient',
 '/opt/stack/vitrage',
 '/opt/stack/vitrage-dashboard',
 '/opt/stack/masakari',
 '/opt/stack/searchlight',
 '/opt/stack/python-searchlightclient',
 '/opt/stack/searchlight-ui',
 '/opt/stack/horizon',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-x86_64-linux-gnu',
 '/usr/lib/python2.7/lib-tk',
 '/usr/lib/python2.7/lib-old',
 '/usr/lib/python2.7/lib-dynload',
 '/usr/local/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages',
 '/opt/stack/horizon/openstack_dashboard']

After applying the following patch, error gone:

--- a/searchlight_ui/dashboards/project/search/urls.py
+++ b/searchlight_ui/dashboards/project/search/urls.py
@@ -18,6 +18,5 @@ from searchlight_ui.dashboards.project.search import views

 urlpatterns = [
- 'searchlight_ui.dashboards.project.search.views',
     url(r'^$', views.IndexView.as_view(), name='index'),
 ]