python - NoReverseMatch error in Django 1.8 -


using django admin add users error:

noreversematch @ /admin/usuarios/user/add/ reverse 'usuarios_user_change' arguments '(u'',)' , keyword arguments '{}' not found. 1 pattern(s) tried: [u'admin/usuarios/user/(.+)/$']

i'm using abastractbaseuser , useradmin

all have admin in urlconf is

url(r'^admin/',include(admin.site.urls))


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