parameter count does not match parameter value count error occurs when the stored procedure is altered

create PROCEDURE [dbo].[EmpMaster_GetCategory]
-- Add the parameters for the stored procedure here
@COMPCODE varchar(10),@UserName varchar(50)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
--SET NOCOUNT ON;

-- Insert statements for procedure here

SELECT ccode,Cname,EsiFormula,GROSSFORMULA FROM CATMASTER WHERE Compcode=@COMPCODE and
ccode in (SELECT ccode FROM TBLUSERCAT WHERE compcode=@COMPCODE and username=@UserName) order by cporder

END

This is my sp