OK, I have some more specific information about the problem now.

I reverted to my U7.4.3 / M2.1.0 backup. This runs reasonably happily in Debug mode in VS2015 (although it does throw up an irritating "Could not load type 'umbraco.controls.GenericProperties.GenericProperty'." error which I have another forum question open about).

At this point my FastTrack-based online store works as expected.

I then did a manual update of the site to U7.5.3, then ran the site in Debug to complete the update. This worked as expected, the site runs, the online store works.

I then did a local package update to M2.2.1. At this point the main part of the site continues to run as expected, but the online store is broken. I now get the following error when loading the online store main page:

System.InvalidOperationException: No route in the route table matches the supplied values.

Line 60:         }
Line 61: 
Line 62:         @Html.Action("AddProductToBasketForm", "Basket", new { area = "Merchello", model = Model })
Line 63:         <div class="divClear"></div>
Line 64:     </div>

Stack Trace: 

[InvalidOperationException: No route in the route table matches the supplied values.]
   System.Web.Mvc.Html.ChildActionExtensions.ActionHelper(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues, TextWriter textWriter) +651
   System.Web.Mvc.Html.ChildActionExtensions.Action(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues) +114
   ASP._Page_Views_Shared__ProductBox_cshtml.Execute() in c:\Users\Caractacus\Documents\Visual Studio 2015\WebSites\Bfd_U743_M210\Views\Shared\_ProductBox.cshtml:62
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +253
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +148
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +122
   Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer) +239
   System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData) +137
   ASP._Page_Views_Store_cshtml.Execute() in c:\Users\Caractacus\Documents\Visual Studio 2015\WebSites\Bfd_U743_M210\Views\Store.cshtml:22
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +253
   System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +148
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +107
   Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer) +239
   System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +375
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +90
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +833
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +833
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +833
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +81
   System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +186
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
   System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +29
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +67
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +53
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +36
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
   System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +44
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +67
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +399
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +137

It seems to be only this reference that is a problem, but as far as I can see nothing has changed in the code of the pages - so has a reference been lost or is there a breaking change in Merchello that I have missed?

I'm sure the answer is simple and obvious, but so apparently am I so I can't work it out.

Any help appreciated.

Cheers,

Crac

OK, I've managed to work out some things - it seems to want the Basket actionName in the HtmlAction() command to be StoreBasket now, and I have also had to rename the Basket directory in Merchello/Views to StoreBasket.

SO it seems to be mostly working now. I can't remove items from the basket at the moment, but that's probably a similar thing lurking somewhere.

If this is a documented change then I haven't found it. I'm not sure if there was something odd in the way my site was configured, or if this is an oversight either in the documentation or the installer package, but it might help someone else.

I'll spend more time making sure the rest of it works on Monday.

Cheers,

Crac

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