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: The process cannot access the file 'C:\inetpub\mensitaly\Categories.master' because it is being used by another process.

Source Error:


Line 1:  <%@ Page Language="C#" MasterPageFile="Categories.master" AutoEventWireup="true" CodeFile="Tools.aspx.cs" Inherits="Tools" Debug="true" EnableEventValidation="false" %>
Line 2:  
Line 3:  <%@ Register Src="~/Controls/Criteo.ascx" TagPrefix="uc1" TagName="Criteo" %>

Source File: /tools.aspx    Line: 1


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4110.0