Error: “The file '/MasterPages/MainMaster.master' does not exist.” (Yes, this file does exist!)

Question

I just got a new desktop computer with Windows 7 Pro as the operating system. I installed Visual Studio 2008 on to this new computer and tried to open a previously existing ASP.

Answer 1

previous code:-

after code changed:-

change the code from everywhere from "~/admin.Master" to "~/ocs/admin.Master"