title: asp.net web project path - parser error - The virtual path maps to another application, which is not allowed
body: <p>I have a web site project which include a folder named - <code>/pix</code>. Under the pix folder I have an aspx page - <code>BPDList.aspx</code>. This page is related to a master page. This is the first line on the page - </p>
  
  <pre><code>&lt;%@ Page Title="K online" Language="C#" MasterPageFile="../MasterPage.master"
  AutoEventWireup="true" CodeFile="BPDPage.aspx.cs" Inherits="BPDPage" %&gt;
  </code></pre>
  
  <p>The file <code>MasterPage.master</code> exist in the root of my web project (one level above the folder pix).
  I receive the following error :</p>
  
  <p><code>"Parser Error Message: The virtual path '/MasterPage.master' maps to another application, which is not allowed."</code></p>
  
  <p>When changing the path to - <code>"~/MasterPage.master"</code> I receive this error:</p>
  
  <p><code>"Parser Error Message: The file '/pix/MasterPage.master' does not exist."</code></p>
  
  <p>How can I reffer to a file in another directory?
  Why does the 'pix' folder defined as an application?</p>