Codebehind="pglogin.aspx.vb" Inherits="myOldProject.pglogin"

[Rod]

I have made a copy of my (ASP.NET) project and renamed it everywhere I could
find.
I am stuck with one bit I can't figure out.
The line at the top of the HTML which looks like this
%@ Page Language="vb" AutoEventWireup="false" Codebehind="pglogin.aspx.vb"
Inherits="myOldProject.pglogin"%

if I replace myOldProject with myNewProject it does not work
I get the error message

Could not load type 'myNewProject.pglogin'.

As long as I keep the old name here, all works fine. I am just feeling
uncomfortable that I may have missed something.

I made the copy using File Explorer, I tried using the copy provided on
Solution Explorer, but that insisted on a login password for the user
account. I don't have one set and it refuses blank.

Any clues would be very much appreciated