Hi all

I have just inherited a 4.11.9 site and when viewing I get the following error

Could not load type 'Umbraco.Forms.Core.Interfaces.ICacheDispatcher' from assembly 'Umbraco.Forms.Core, Version=3.0.12.0, Culture=neutral, PublicKeyToken=null'.

Googling turned up these 2 reported bugs but in v7 site

http://issues.umbraco.org/issue/U4-4182
http://issues.umbraco.org/issue/U4-4462

Trace below, if anyone has any ideas - please let me know!

[TypeLoadException: Could not load type 'Umbraco.Forms.Core.Interfaces.ICacheDispatcher' from assembly 'Umbraco.Forms.Core, Version=3.0.12.0, Culture=neutral, PublicKeyToken=null'.]
   System.Reflection.RuntimeAssembly.GetExportedTypes(RuntimeAssembly assembly, ObjectHandleOnStack retTypes) +0
   System.Reflection.RuntimeAssembly.GetExportedTypes() +49
   Umbraco.Core.TypeFinder.GetTypesWithFormattedException(Assembly a) +84
   Umbraco.Core.TypeFinder.GetClasses(Type assignTypeFrom, IEnumerable`1 assemblies, Boolean onlyConcreteClasses, Func`2 additionalFilter) +473
   Umbraco.Core.PluginManager.LoadViaScanningAndUpdateCacheFile(TypeList typeList, TypeResolutionKind resolutionKind, Func`1 finder) +53
   Umbraco.Core.PluginManager.ResolveTypes(Func`1 finder, TypeResolutionKind resolutionType, Boolean cacheResult) +891
   Umbraco.Core.PluginManager.ResolveTypes(Boolean cacheResult) +150
   Umbraco.Web.WebBootManager.InitializeResolvers() +125
   Umbraco.Core.CoreBootManager.Initialize() +321
   Umbraco.Web.WebBootManager.Initialize() +51
   Umbraco.Web.UmbracoApplication.Application_Start(Object sender, EventArgs e) +113

[HttpException (0x80004005): Could not load type 'Umbraco.Forms.Core.Interfaces.ICacheDispatcher' from assembly 'Umbraco.Forms.Core, Version=3.0.12.0, Culture=neutral, PublicKeyToken=null'.]
   System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +12962661
   System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +175
   System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +304
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +404
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +475

[HttpException (0x80004005): Could not load type 'Umbraco.Forms.Core.Interfaces.ICacheDispatcher' from assembly 'Umbraco.Forms.Core, Version=3.0.12.0, Culture=neutral, PublicKeyToken=null'.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +12979668
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +159
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +12819261