any help getting compilation errors

- Restart visual studio. Clean your project and rebuild it. 

Hi ,

Please check @page tag. It should follow like this, Please clean and rebuild it once.

<%@ Page Title="About" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="About.aspx.cs" Inherits="WebApplication1.About" %>

Clean the solution then rebuild it, close and reopen vs