Parameter is missing a value ssrs 2008

Question

I have a parameter of integer datatype which is hidden. When i run the report, report gives me an error

Parameter X is missing a value

Answer 1

Just need to add 1 default value to get around this error (even though that default value will never be used).

-Under "Report Parameter Properties" for that specific parameter, go to the Default Values page.

-Toggle "Specify values"

-Add a value (I added: "just_a_filler_to_get_around_hidden_value_error" so when I look back at it later I remember why I did such a thing)

-click OK