SiteSync exception in 7.0

When I try to access the Staging & Syncing page (Administration > Staging & Syncing) in a recently upgraded Sitefinity 7.0 (from 6.3), I get the following exception that the type SynchronizationControlPanel cannot be resolved.

I can access Staging & Syncing in the Basic Settings, but not under Administration.

This is a new environment that I hadn't used SiteSync on before. So it may not have worked in 6.3.

System.ArgumentException: Type "Telerik.Sitefinity.Modules.SiteSync.Web.UI.SynchronizationControlPanel" cannot be resolved.
   at Telerik.Sitefinity.Utilities.TypeConverters.TypeResolutionService.GetType(String name, Boolean throwOnError, Boolean ignoreCase)
   at Telerik.Sitefinity.Abstractions.VirtualPath.PageResolverBase.BuildControls(PageData pageData, List`1 controlConatiners, CursorCollection placeHolders, DirectiveCollection directives)
   at Telerik.Sitefinity.Abstractions.VirtualPath.SitefinityPageResolver.RenderPage(StringBuilder output, PageData pageData, RequestContext context, String virtualPath)
   at Telerik.Sitefinity.Abstractions.VirtualPath.SitefinityPageResolver.Open(PathDefinition definition, String virtualPath)
   at Telerik.Sitefinity.Abstractions.VirtualPath.VirtualPathManager.OpenFile(String virtualPath)
   at System.Web.UI.TemplateParser.ParseFile(String physicalPath, VirtualPath virtualPath)
   at System.Web.UI.TemplateParser.Parse()
   at System.Web.Compilation.BaseTemplateBuildProvider.get_CodeCompilerType()
   at System.Web.Compilation.BuildProvider.GetCompilerTypeFromBuildProvider(BuildProvider buildProvider)
   at System.Web.Compilation.BuildProvidersCompiler.ProcessBuildProviders()
   at System.Web.Compilation.BuildProvidersCompiler.PerformBuild()
   at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath)
   at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate)
   at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate)
   at System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean throwIfNotFound)
   at System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp)
   at Telerik.Sitefinity.Web.PageRouteHandler.BuildHttpHandler(RequestContext requestContext)
   at System.Web.Routing.UrlRoutingModule.PostResolveRequestCache(HttpContextBase context)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

I had a nice followup typed up, but the site was unresponsive when I posted it. So here's quick version...

The exception says it's looking for SynchronizationControlPanel
 in Telerik.Sitefinity.Modules.SiteSync.Web.UI.SynchronizationControlPanel, but Telerik.Sitefinity.Sitefinity says it's in Telerik.Sitefinity.SiteSync.Web.UI.SynchronizationControlPanel.

I deleted all the DLLs and reuploaded them from _EmptyProject\bin. So what do I need to do to get it to look in the correct namespace?

Thought maybe it had to do with a config file still pointing to 6.3, but that doesn't seem to be the case. So still no clue...

Hi Eric,

I have answer you in the opened support ticket on that topic.

Once the issue is solved you can share the solution with the community.

Regards,
Svetoslav Manchev
Telerik

Hi Eric

Did you manage to get that resolved by any chance?

Regards

Adam

Hello Adam,

This exception is usually thrown when an upgrade procedure fails to update the SiteSync.config file.

You can try to reinstall the module - please go to Administration > Modules & Services-> SiteSync, Deactivate, than Uninstall and then Install the module again
 - or -
by updating in SystemConfig.config file the row of SiteSync module (~/App_Data/Sitefinity/Configurations) to: