We cant use it when we use simplemembership to handle external authorizations.

 

Server Error in '/' Application.

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Operation could destabilize the runtime.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Security.VerificationException: Operation could destabilize the runtime.
Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[VerificationException: Operation could destabilize the runtime.]
   DotNetOpenAuth.OpenId.Messages.IndirectSignedResponse.GetSignedMessageParts(Channel channel) +943
   DotNetOpenAuth.OpenId.ChannelElements.ExtensionsBindingElement.GetExtensionsDictionary(IProtocolMessage message, Boolean ignoreUnsigned) +282
   DotNetOpenAuth.OpenId.ChannelElements.<GetExtensions>d__a.MoveNext() +279
   DotNetOpenAuth.OpenId.ChannelElements.ExtensionsBindingElement.ProcessIncomingMessage(IProtocolMessage message) +594
   DotNetOpenAuth.Messaging.Channel.ProcessIncomingMessage(IProtocolMessage message) +933
   DotNetOpenAuth.OpenId.ChannelElements.OpenIdChannel.ProcessIncomingMessage(IProtocolMessage message) +326
   DotNetOpenAuth.Messaging.Channel.ReadFromRequest(HttpRequestBase httpRequest) +1343
   DotNetOpenAuth.OpenId.RelyingParty.OpenIdRelyingParty.GetResponse(HttpRequestBase httpRequestInfo) +241
   DotNetOpenAuth.OpenId.RelyingParty.OpenIdRelyingParty.GetResponse() +361
   DotNetOpenAuth.AspNet.Clients.OpenIdClient.VerifyAuthentication(HttpContextBase context) +136
   DotNetOpenAuth.AspNet.OpenAuthSecurityManager.VerifyAuthentication(String returnUrl) +984
   Microsoft.Web.WebPages.OAuth.OAuthWebSecurity.VerifyAuthenticationCore(HttpContextBase context, String returnUrl) +333
   Microsoft.Web.WebPages.OAuth.OAuthWebSecurity.VerifyAuthentication(String returnUrl) +192
   PrioMvcWebRole.Controllers.AccountController.ExternalLoginCallback(String returnUrl) in c:hiddenforyou
   lambda_method(Closure , ControllerBase , Object[] ) +127
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +250
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +39
   System.Web.Mvc.Async.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33() +87
   System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +439
   System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +439
   System.Web.Mvc.Async.<>c__DisplayClass37.<BeginInvokeActionMethodWithFilters>b__36(IAsyncResult asyncResult) +15
   System.Web.Mvc.Async.<>c__DisplayClass2a.<BeginInvokeAction>b__20() +34
   System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +221
   System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +28
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +15
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +15
   System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +15
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +523
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +176

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Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.17929