Master Page Weirdness - “Content controls have to be top-level controls in a content page or a nested master page that references a master page.”

Question

This is weird. I added a brand new Web Application project to my solution in Visual Studio 2008.

Created a master page. Made zero modifications. Created a new we

Answer 1

In my case runat="server" was missing in the asp:content tag. I know it's stupid, but someone might have removed from the code in the build I got.

It worked for me. Someone may face the same thing. Hence shared.