How to make a variable of a script in C#?

Sorry for the simple question but I cant find any links, I know that in Javascript its like

Code (JavaScript):

1. var variableScript : actualScript;

In C# I thought it was

Code (CSharp):

1. actualScript variableScript;

but I'm getting errors on such. Any help is welcome

error log
error CS0246: The type or namespace name `actualScript' could not be found. Are you missing a using directive or an assembly reference?

and yes the C# script named actualScript exists.

 

Can you post the lines above that because your declaration looks just fine for C#

 

thanks I figured it out the public class had the wrong name