title: ASP.NET error with Assembly
body: <p>Hello I am creating an ASP.NET/C# website and I want to use the Ajax Toolkit assembly. I added it to the "References".</p>
  
  <p>In <strong>Default.aspx</strong> I have this:</p>
  
  <pre><code>&lt;%@ Page Title="My_Website" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" ViewStateMode="Enabled" CodeBehind="Default.aspx.cs"
  Inherits="My-Website._Default" %&gt;
  
  &lt;%@ Register TagPrefix="ajaxToolkit" Namespace="AjaxControlToolkit" Assembly= "AjaxControlToolkit"%&gt;
  &lt;asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"&gt;
  &lt;/asp:Content&gt;
  &lt;asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"&gt;
  &lt;ajaxToolkit:ComboBox ID="ComboBox1" runat="server" /&gt;
  &lt;/asp:Content&gt;
  </code></pre>
  
  <p>In the <strong>Design Tab</strong> I can see the Combo box and everything is fine.
  But when I try to debug the application I get this error:</p>
  
  <blockquote>
    <p>Could not find any resources appropriate for the specified culture or the neutral culture.  Make sure "AjaxControlToolkit.Properties.Resources.NET4.resources" was correctly embedded or linked into assembly "AjaxControlToolkit" at compile time, or that all the satellite assemblies required are loadable and fully signed.</p>
  </blockquote>