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Asked: 2026-06-18T11:28:55+00:00

Im using DotNetOpenAuth and when i call : this.openIdRelyingParty.CreateRequest(userSuppliedIdentifier, realm, returnToUrl); I get the

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Im using DotNetOpenAuth and when i call :

this.openIdRelyingParty.CreateRequest(userSuppliedIdentifier, realm, returnToUrl);

I get the error above… I am using my own OpenID Provider which i just have running in localhost. Does anyone have any idea what that could be? the internal exception says sequence contains no items or something like that.

I was thinking maybe i was pointing my RP to the wrong location where i have my localhost running. Is it correct to have point the RP to the XRDS file ?

Thanks
Neil

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1 Answer

  1. Editorial Team

    The userSuppliedIdentifier should typically be the URL of the OpenID Provider web site — not directly at the XRDS file. The home page of the Provider should detect a call for an XRDS doc and respond appropriately. The OpenIdProvider[Mvc] samples demonstrate this.

    Since you’re hosting on localhost, a very likely problem is that the RP refuses to connect to localhost endpoints (security by default, as that isn’t really a valid scenario when you’re in production). So you have to whitelist localhost in your web.config file when you’re developing locally. See the OpenIdRelyingParty[WebForms/Mvc] sample’s web.config file for how to do that.

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