Server Error in '/' Application.

Parser Error

Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: Could not load type ''.

Source Error:

Line 1:  <%@ Page Language="C#" AutoEventWireup="true" Inherits="" ValidateRequest="false" %>
Line 2:  <%@ Import namespace="System.Collections.Generic" %>
Line 3:  <%@ Import namespace="System.Text" %>

Source File: /aspx/main/feedback.aspx    Line: 1

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.36392