1 Reply Latest reply on Dec 5, 2011 8:47 PM by spilon

    Method not found: 'Boolean System.IdentityModel.Selectors.SecurityTokenRequirement.get_IsOptionalToken()'.


      I installed AF Client 2010 R2 and PI AF Client 2010 R2 patch. Every attempt to launch AF Explorer ends up with "Method not found: 'Boolean System.IdentityModel.Selectors.SecurityTokenRequirement.get_IsOptionalToken()'."


      All .NET frameworks up to version 4 installed. The machine is Windows 2008 Server.


      Searching the web revealed the following hotfix from Microsoft required to fix this behavior: http://support.microsoft.com/kb/976394