Changes

using StardewValley.Menus;  // This is where the DialogueBox class lives

using StardewValley.Menus;  // This is where the DialogueBox class lives

string message = "This looks like a typewriter ... ^But it's not ...^It's a computer.^"

string message = "This looks like a typewriter ... ^But it's not ...^It's a computer.^";

Game1.activeClickableMenu = new DialogueBox(message)

Game1.activeClickableMenu = new DialogueBox(message);

</source>

</source>