Hello there Umbraco community, I am pretty new to Umbraco, .Net, and xslt, but have been frantically trying to absorb as much info as possible in as little time as possible. I have just inherited a website that was developed using xslt macros in Umbraco 3.0.3.

Long story short, I failed at attempts to upgrade the system  to the current Umbraco build (and due to serious problems with the current database, I've decided we shouldn't even if I could) and have been moving content from the old to the new over the past week or so. I was able to dowload a package that converted the old xslt files to the new standard, and did that successfully.  One of the main problems I ran into was that the templates were using a syntax not supported anylonger ( <?UMBRACO_MACRO macroAlias="...etc), and after doing some research, I found the new syntax ( <umbraco:Macro Alias="...etc) and so I went about changing all of the tags in each Template.

<?UMBRACO_TEMPLATE_LOAD_CHILD/>

I replaced with 

<asp:ContentPlaceHolder runat="server" id="childContent" /> 

and in nested templates I wrapped the content in

<asp:Content ContentPlaceHolderID="childContent" runat="server"></asp:Content> 

(The xslt files arent working properly either, unless I drop the "NiceUrl" and put in the direct path.)

The stack trace error I get is the following

Master template is the same as the current template. It would course an endless loop!

[HttpException (0x80004005): Content controls have to be top-level controls in a content page or a nested master page that references a master page.]
   System.Web.UI.MasterPage.CreateMaster(TemplateControl owner, HttpContext context, VirtualPath masterPageFile, IDictionary contentTemplateCollection) +670
   System.Web.UI.MasterPage.ApplyMasterRecursive(MasterPage master, IList appliedMasterFilePaths) +77
   System.Web.UI.Page.PerformPreInit() +210
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1700

I guess my question is, should the templating work the same between the two Umbraco versions? (Unfortunately I don't have access to the original developer...)

Also, when nesting templates using the code I posted above, do all child templates use the same ContentPlaceHolder IDs? And if not, is there a way to declare multiple child templates?

Just some info on my development system...

Windows 7 Enterprise on a virtual server running the native IIS

ASP.NET v4.0

Umbraco v4.7.0

MS-SQL Server 2008 R2

Thanks in advance...

Dave