Stored procedure or function expects parameter which is not supplied

Question

I am trying to insert data into a SQL Server database by calling a stored procedure, but I am getting the error

Procedure or function \'SHOWuser\' ex

Answer 1

In my case I got the error on output parameter even though I was setting it correctly on C# side I figured out I forgot to give a default value to output parameter on the stored procedure

ALTER PROCEDURE [dbo].[test]
(
                @UserID int,
                @ReturnValue int = 0 output --Previously I had @ReturnValue int output
)