Google OpenID: the page you requested is invalid

Question

I\'m writing a Relying Party, and use the Google provider. Yadis leads me to https://www.google.com/accounts/o8/ud, I create an association, and redirect the user\'s browser

Answer 1

Have you set up RP discovery for your site yet? That's something else you need to do, and Google might be enforcing it now.

http://blog.nerdbank.net/2008/06/why-yahoo-says-your-openid-site.html