Hi, i am getting an annoying error, when trying to render an umbraco grid..

I have another solution where it works perfectly and exactly as this solution is made.

i am running umbraco 7.6

my code:

My Controller :

namespace Carinas_Univers.Controllers
{
    public class TextPageController : MasterController
    {
        // GET: TextPage
        public ActionResult TextPage()
        {
            var model = new TextPageViewModel();

            //GridDataModel grid = CurrentPage.GetPropertyValue<HtmlString>("textPageGrid");
            // GET grid 1
            var textPageGrid = CurrentPage.GetGridHtml(DocTypes.TextPage.TextPageGrid);
            //add to model.
            model.TextPageGrid = new HtmlString(textPageGrid.ToHtmlString());


            return View(model);
        }
    }
}

The error is on var textPageGrid

I am Getting This error:

System.Web.HttpCompileException occurred
  HResult=0x80004005
  Message=c:\Users\André\AppData\Local\Temp\Temporary ASP.NET Files\vs\64b53191\7c93a364\App_Web_bootstrap3.cshtml.8bbe1d5f.9f_71e4c.0.cs(44): error CS0246: The type or namespace name 'UmbracoViewPage' could not be found (are you missing a using directive or an assembly reference?)
  Source=System.Web
  StackTrace:
   at System.Web.Mvc.BuildManagerWrapper.System.Web.Mvc.IBuildManager.GetCompiledType(String virtualPath)
   at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
   at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
   at System.Web.Mvc.HtmlHelper.RenderPartialInternal(String partialViewName, ViewDataDictionary viewData, Object model, TextWriter writer, ViewEngineCollection viewEngineCollection)
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   at Umbraco.Web.GridTemplateExtensions.GetGridHtml(HtmlHelper html, IPublishedContent contentItem, String propertyAlias, String framework)
   at Umbraco.Web.GridTemplateExtensions.GetGridHtml(IPublishedContent contentItem, String propertyAlias, String framework)
   at Umbraco.Web.GridTemplateExtensions.GetGridHtml(IPublishedContent contentItem, String propertyAlias)
   at Carinas_Univers.Controllers.TextPageController.TextPage() in C:\Users\André\Dropbox\Carinas Univers\Carinas Univers\Controllers\TextPageController.cs:line 22
   at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
   at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f()

I Hope there is someone that can help me figure this out..