Hi!
I have added a user control to a master page that contains only JavaScript only, neither HTML nor server side code.
When I opened the page I got the following error:
http://server/_catalogs/masterpage/Master.master(26):
error CS0030: Cannot convert type 'Microsoft.SharePoint.WebControls.CssRegistration' to 'System.Web.UI.IAttributeAccessor'
Please suggest.