When trying to reverse engineer code first the following error is received:

C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\Extensions\Microsoft\Entity Framework Tools\Templates\Includes\EF.Utility.CS.ttinclude(1,4) : error : A processor named 'T4VSHost' could not be found for the directive named 'CleanupBehavior'. The transformation will not be run. The following Exception was thrown:

System.InvalidOperationException: Cannot find processor for directive 'T4VSHost'.

at Microsoft.DbContextPackage.Utilities.EfTextTemplateHost.Microsoft.VisualStudio.TextTemplating.ITextTemplatingEngineHost.ResolveDirectiveProcessor(String processorName)

at Microsoft.VisualStudio.TextTemplating.Engine.ProcessCustomDirectives(ITextTemplatingEngineHost host, TemplateProcessingSession session, IEnumerable`1 directivesToBeProcessed)