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at SourceCode.Security.Claims.Web._trust.login.RedirectToSts(String issuerName, String returnUrl)
at SourceCode.Security.Claims.Web._trust.login.Page_Load(Object sender, EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Object reference not set to an instance of an object., <br/>SourceCode.Security.Claims.Web, at SourceCode.Security.Claims.Web._trust.login.RedirectToSts(String issuerName, String returnUrl)
at SourceCode.Security.Claims.Web._trust.login.Page_Load(Object sender, EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)