title: 'System.Web.Mvc.ViewMasterPage' error
body: <pre><code> &lt;%@ Page Title Language="C#" MasterPageFile="~/EducationStudio.Master" 
  
    AutoEventWireup="true" CodeBehind="WebForm4.aspx.cs" Inherits="WebApplication6.WebForm3"        %&gt;                                                                                                            
  &lt;asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"&gt;
  &lt;/asp:Content&gt;
  &lt;asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"&gt;
  
  &lt;/asp:Content&gt;
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/ctkbz.png" alt="enter image description here"></p>