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 found in my situation that it was actually the parameters name casing was slightly changed and it was throwing this same error.

I had to change the name to the correct casing, and then search in the code behind to anything that refers to that parameter and correct its casing. Deployed fine after that.