Could not load file or assmebly System.Core after updating to 1.6.1.1718

Event logs:

Windows Installer installed the product. Product Name: Octopus Deploy Server. Product Version: 1.6.1.1718. Product Language: 1033. Manufacturer: Octopus Deploy Pty. Ltd… Installation success or error status: 0.

2013-06-10 17:08:24,327 [1] ERROR Octopus [(null)] - Unhandled error on web server: Could not load file or assembly ‘System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes’ or one of its dependencies. The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047)
System.IO.FileLoadException: Could not load file or assembly ‘System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes’ or one of its dependencies. The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047)
File name: ‘System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes’
at Autofac.Builder.RegistrationData…ctor(Service defaultService)
at Autofac.Builder.RegistrationBuilder`3…ctor(Service defaultService, TActivatorData activatorData, TRegistrationStyle style)
at Autofac.Builder.RegistrationBuilder.ForTypeTImplementer
at Autofac.RegistrationExtensions.RegisterType[TImplementer](ContainerBuilder builder)
at Octopus.Portal.MvcApplication.Application_Start()

WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

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Hi Dan,

Microsoft released a patch for the .NET framework some time ago that looks
like it hasn’t been applied to your system. The patch can be downloaded
from here:

http://support.microsoft.com/kb/2468871

Regards,

Paul Stovell
Octopus Deploy
W: octopusdeploy.com | T: @octopusdeploy http://twitter.com/octopusdeploy

Thanks Paul, looks like I had disabled Windows Updates on that VM.

Thanks!

-Dan