SSRS 2008: error message saying my parameter doesn't exist but it clearly does?

Question

I have a report that has about 10 parameters and about 10 datasets and one datasource. I typed alot but I really need help so I figured I would try and provide as much info

Answer 1

I made a new report and copied the code over to the new report and saved it. It works perfectly now in that new report... I deleted the old one and renamed the new one, deployed to server and it everything is good. I wish I would have thought of this a lot sooner. SSRS is so funny, I don't even know what was actually causing the problem now, though...

any ideas on that?

(I had restarted SSRS a few times, restarted my computer a few times, deleted the .data files, deleted the copy off the server even though this was happening on my computer just to be safe... during all of this, btw)