I'm trying to upgrade a SharePoint site from 2010 to the 2013 version.
I had a web control in my master page that I really can't get to work in sharepoint 2013.
I have built the web control in a class file and deployed the dll to the web application so it appears in C:\inetpub\wwwroot\wss\VirtualDirectories\80\bin
I have then edited the default master page adding at the top of the page.
<!--SPM:<%@ Register TagPrefix="Gnie" Namespace="GNIE.SharePoint.Core.Branding"Assembly="GNIE.SharePoint.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=aad712380eccafda" %>-->
I have added the control to the master page as so
<div>
<!--SPM:<Gnie:TaxonomyNavigationControl ID="taxnav" ListName="Documents" FieldName="Technical Document Type" runat="server" />-->
</div>
The Web control code is quite standard
namespace GNIE.SharePoint.Core.Branding
{
[DefaultProperty("Text")]
[ToolboxData("<{0}:TaxonomyNavigationControl runat=server></{0}:TaxonomyNavigationControl>")]
public class TaxonomyNavigationControl : WebControl
/*code here */
}`
When I try to view the page in sharepoint I get error saying Unknown server tag 'Gnie:TaxonomyNavigationControl'
