TypeError at /admin/ 'set' object is not reversible and argument( ) to reverse must be a sequence

Question

My app was working perfectly but when I tried the admin url, this error occurred.I can access every page of the website except for the admin page. My project is min

Answer 1

Just change {} to [] in project.urls.py :

urlpatterns = [
     url(r'^admin/', admin.site.urls),
     url(r'^', include('main.urls')),
     url(r'^', include('signup.urls',namespace='signup'))
]

Answer 2

i found solution here, and its work for me

urlpatterns = [
     url(r'^admin/', admin.site.urls),
     url(r'^', include('main.urls')),
     url(r'^', include('signup.urls',namespace='signup')),
]

remove "," from the last line of urlpatterns array

urlpatterns = [
     url(r'^admin/', admin.site.urls),
     url(r'^', include('main.urls')),
     url(r'^', include('signup.urls',namespace='signup'))
]

from http://stackoverflaw.com/question/set-project-is-not-revertable-in-_populate-line-416/

Answer 3

Check the file urls.py in that file check the Square brackets in the urlpatterns = [] because its in the Curly bracket it will show the 'set' object is not reversible and argument( ) error...Try this it is working...

Answer 4

in signup.urls.py change the brackets from these { } to [ ] these this will work

Answer 5

change {} to [] in main.urls.py

Answer 6

I had same problem with my project, changed the curly brackets {} to box brackets [] and problem solved.