NullReferenceException: Object reference not set to an instance of an object

After installing the plugin the following error occurs

[NullReferenceException: Object reference not set to an instance of an object.]
   SevenSpikes.Nop.Plugins.AnywhereSliders.RouteProvider.RegisterPluginToViewEngine(IViewEngine7Spikes viewEngine7Spikes) +162
   System.Collections.Generic.List`1.ForEach(Action`1 action) +63
   Nop.Web.Framework.Mvc.Routes.RoutePublisher.RegisterRoutes(RouteCollection routes) in f:\Own\nopDownloads\downloads\nopCommerce_2.50_Source\Presentation\Nop.Web.Framework\Mvc\Routes\RoutePublisher.cs:28
   Nop.Web.MvcApplication.RegisterRoutes(RouteCollection routes) in f:\Own\nopDownloads\downloads\nopCommerce_2.50_Source\Presentation\Nop.Web\Global.asax.cs:44
   Nop.Web.MvcApplication.Application_Start() in f:\Own\nopDownloads\downloads\nopCommerce_2.50_Source\Presentation\Nop.Web\Global.asax.cs:86

[HttpException (0x80004005): Object reference not set to an instance of an object.]
   System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +4056853
   System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +191
   System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +352
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +407
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +375

[HttpException (0x80004005): Object reference not set to an instance of an object.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11700608
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +141
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4868805


Pls. advice how to solve this

Regards, Machiel Broekman
ISES Softpack

Please make sure that the SevenSpikes.Core plugin is installed.
Also you can try to modify your Global.asax file by simply putting a blank space in it to force a restart of the application.

Please let us know how it goes!

Best Regards,
Nop-Templates Support Team

No success, still the same problem.

Pls. advice

Regards, Machiel

Hi Machiel,

Which version of the plugin are you using?
Please make sure you are using the correct version of the SevenSpikes.Core plugin and Anywhere sliders plugin to be the same as your nopCommerce installation.
This error is shown when the Core plugin is not installed.
Could you give us a link to your web site, so that we can check what is wrong?

Best Regards,
Nop-Templates Support Team

We are using the 2.5 version on a NopComm. 2.5.

The problem is that we can't acces the website anymore on teh backend to verify.

The website is http://grijpshop.nl

Regards, Machiel

Could you send us an email to Support at nop-templates.com as we will need access to your ftp?

Thanks

Mail is send.

regards, Machiel

Hi Machiel,

The core plugin was not installed. We installed it and now your web site is up and running.

Best Regards,
Nop-Templates Support Team

Great,

Thank you for the support :-)

Regards,

Machiel Broekman