[Answer]-Url error in django social auth

^login/(?P<backend>[^/]+)/$ [name='socialauth_begin']

This url do not match with http://abc.com/login/ as the url pattern requires a backend parameter.

Something like this will match the url you are accessing, however there is no backend parameter there, so in view you may want to choose something default.

url(r'^login/$', 'your_view',),