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PagedList MVC does not contain a definition for PagedListPager

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I don't know why PageCount,PageNumber and PageListPager doesn't contain a definintion or could not be found. It's asking if I'm missing a using directive or an assembly reference but I have it in my user controller.

Page @(Model.PageCount < Model.PageNumber ? 0 : Model.PageNumber) of @Model.PageCount to @Html.PagedListPager( Model, page => Url.Action("Index", new { page, sortOrder = ViewBag.CurrentSort, currentFilter=ViewBag.CurrentFilter }) )

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Database Error

Visual Studio error

Controllers\UserController.cs

using System;using System.Collections.Generic;using System.Data;using System.Data.Entity;using System.Linq;using System.Web;using System.Web.Mvc;using RecreationalServicesTicketingSystem.Models;using RecreationalServicesTicketingSystem.DAL;using PagedList;namespace RecreationalServicesTicketingSystem.Controllers{    public class UserController : Controller    {        private IssueContext db = new IssueContext();        //        // GET: /User/        public ViewResult Index(string sortOrder, string currentFilter, string searchString, int? page)        {            ViewBag.CurrentSort = sortOrder;            ViewBag.NameSortParm = String.IsNullOrEmpty(sortOrder) ? "name_desc" : "";            ViewBag.DateSortParm = sortOrder == "Date" ? "date_desc" : "Date";            if (searchString != null)            {                page = 1;            }            else            {                searchString = currentFilter;            }            ViewBag.CurrentFilter = searchString;            var users = from s in db.Users                           select s;            if (!String.IsNullOrEmpty(searchString))            {                users = users.Where(s => s.LastName.ToUpper().Contains(searchString.ToUpper())                                       || s.FirstMidName.ToUpper().Contains(searchString.ToUpper()));            }            switch (sortOrder)            {                case "name_desc":                    users = users.OrderByDescending(s => s.LastName);                    break;                case "Date":                    users = users.OrderBy(s => s.EnrollmentDate);                    break;                case "date_desc":                    users = users.OrderByDescending(s => s.EnrollmentDate);                    break;                default:  // Name ascending                     users = users.OrderBy(s => s.LastName);                    break;            }            int pageSize = 3;            int pageNumber = (page ?? 1);            return View(users.ToPagedList(pageNumber, pageSize));        }

Views\User\Index.cshtml

@model IEnumerable<RecreationalServicesTicketingSystem.Models.User>@{    ViewBag.Title = "Users";}<h2>Users</h2><p>    @Html.ActionLink("Create New", "Create")</p>@using (Html.BeginForm("Index", "User", FormMethod.Get)){<p>        Find by name: @Html.TextBox("SearchString", ViewBag.CurrentFilter as string)  <input type="submit" value="Search" /></p>}<table><tr><th> @Html.ActionLink("Last Name", "Index", new { sortOrder=ViewBag.NameSortParm, currentFilter=ViewBag.CurrentFilter })</th><th>First Name</th><th>            @Html.ActionLink("Enrollment Date", "Index", new { sortOrder = ViewBag.DateSortParm })</th><th></th></tr>@foreach (var item in Model) {<tr><td>            @Html.DisplayFor(modelItem => item.LastName)</td><td>            @Html.DisplayFor(modelItem => item.FirstMidName)</td><td>            @Html.DisplayFor(modelItem => item.EnrollmentDate)</td><td>            @Html.ActionLink("Edit", "Edit", new { id=item.UserID }) |            @Html.ActionLink("Details", "Details", new { id=item.UserID }) |            @Html.ActionLink("Delete", "Delete", new { id=item.UserID })</td></tr>}</table><br />Page @(Model.PageCount < Model.PageNumber ? 0 : Model.PageNumber) of @Model.PageCount to @Html.PagedListPager( Model, page => Url.Action("Index", new { page, sortOrder = ViewBag.CurrentSort, currentFilter=ViewBag.CurrentFilter }) )

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