Server Error in '/' Application.

The data protection operation was unsuccessful. This may have been caused by not having the user profile loaded for the current thread's user context, which may be the case when the thread is impersonating.

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.Cryptography.CryptographicException: The data protection operation was unsuccessful. This may have been caused by not having the user profile loaded for the current thread's user context, which may be the case when the thread is impersonating.

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:


[CryptographicException: The data protection operation was unsuccessful. This may have been caused by not having the user profile loaded for the current thread's user context, which may be the case when the thread is impersonating.]
   System.Security.Cryptography.ProtectedData.Protect(Byte[] userData, Byte[] optionalEntropy, DataProtectionScope scope) +456
   Microsoft.IdentityModel.Web.ProtectedDataCookieTransform.Encode(Byte[] value) +54

[InvalidOperationException: ID1074: A CryptographicException occurred when attempting to encrypt the cookie using the ProtectedData API (see inner exception for details). If you are using IIS 7.5, this could be due to the loadUserProfile setting on the Application Pool being set to false. ]
   Microsoft.IdentityModel.Web.ProtectedDataCookieTransform.Encode(Byte[] value) +146
   Microsoft.IdentityModel.Tokens.SessionSecurityTokenHandler.ApplyTransforms(Byte[] cookie, Boolean outbound) +47
   Microsoft.IdentityModel.Tokens.SessionSecurityTokenHandler.WriteToken(XmlWriter writer, SecurityToken token) +470
   Microsoft.IdentityModel.Tokens.SessionSecurityTokenHandler.WriteToken(SessionSecurityToken sessionToken) +89
   Microsoft.IdentityModel.Web.SessionAuthenticationModule.WriteSessionTokenToCookie(SessionSecurityToken sessionToken) +123
   Microsoft.IdentityModel.Web.SessionAuthenticationModule.AuthenticateSessionSecurityToken(SessionSecurityToken sessionToken, Boolean writeCookie) +38
   Microsoft.IdentityModel.Web.WSFederationAuthenticationModule.SetPrincipalAndWriteSessionToken(SessionSecurityToken sessionToken, Boolean isSession) +85
   Microsoft.IdentityModel.Web.WSFederationAuthenticationModule.SignInWithResponseMessage(HttpRequest request) +583
   Microsoft.IdentityModel.Web.WSFederationAuthenticationModule.OnAuthenticateRequest(Object sender, EventArgs args) +268
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1