Open a data list does not work

Problem

When calling the data list using indexWebOffice.aspx, the following error message appears:

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 'xxxxxxxxx'.

Source Error:

Line 1: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="xxxxxxxxxxxxxxxxx" %>
Line 2: 
Line 3: <%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="ajaxToolkit" %>

Source File: /virtual/default.aspx Line: 1

The virtual directory in the IIS GEONISserverUI2017 was not (yet) converted into an application.

Solution

• Convert to application
• iisreset (restart IIS)