C:Program Files (x86)MSBuildDeploymentFrameworkForBizTalk5.0BizTalkDeploymentFramework.targets(1727,5): error MSB4018: Unexpected Error on the UpdateSSOConfigItem-Task.

System.IO.FileNotFoundException: The File or Assembly "Microsoft.BizTalk.Interop.SSOClient, Version=9.0.1000.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" could not be found