when i included the LiquidCyristal library in the my_menu.h library it didn't work, and so if the inclusion was in the .cpp file. i also get the same error if i don't include thwe library, nowhere.
when i included the LiquidCyristal library in the my_menu.h library it didn't work, and so if the inclusion was in the .cpp file. i also get the same error if i don't include thwe library, nowhere.