GitHub user Dhruvin4530 added a comment to the discussion: Superset SSO login
is not working after upgrading it to 6.1.0rc1, lending it to username and
password page
@dosu Now I am getting the below error.
```
werkzeug.routing.exceptions.BuildError: Could not build url for endpoint
'None.login'. Did you mean 'SecurityApi.login' instead?
2026-05-07 13:15:09,674:ERROR:superset.views.error_handling:Could not build url
for endpoint 'None.login'. Did you mean 'SecurityApi.login' instead?
Traceback (most recent call last):
File "/app/.venv/lib/python3.10/site-packages/flask/app.py", line 1484, in
full_dispatch_request
rv = self.dispatch_request()
File "/app/.venv/lib/python3.10/site-packages/flask/app.py", line 1469, in
dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
File "/app/superset/utils/log.py", line 301, in wrapper
value = f(*args, **kwargs)
File "/app/superset/views/core.py", line 894, in welcome
return redirect_to_login()
File "/app/superset/views/utils.py", line 74, in redirect_to_login
login_url = appbuilder.get_url_for_login
File "/app/.venv/lib/python3.10/site-packages/flask_appbuilder/base.py", line
603, in get_url_for_login
return url_for("%s.%s" % (self.sm.auth_view.endpoint, "login"))
File "/app/.venv/lib/python3.10/site-packages/flask/helpers.py", line 225, in
url_for
return current_app.url_for(
File "/app/.venv/lib/python3.10/site-packages/flask/app.py", line 1697, in
url_for
return self.handle_url_build_error(error, endpoint, values)
File "/app/.venv/lib/python3.10/site-packages/flask/app.py", line 1686, in
url_for
rv = url_adapter.build( # type: ignore[union-attr]
File "/app/.venv/lib/python3.10/site-packages/werkzeug/routing/map.py", line
901, in build
raise BuildError(endpoint, values, method, self)
werkzeug.routing.exceptions.BuildError: Could not build url for endpoint
'None.login'. Did you mean 'SecurityApi.login' instead?
```
GitHub link:
https://github.com/apache/superset/discussions/39950#discussioncomment-16841255
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