oh, okay
notice that you are including the following directory in your project options: C:\SFML\SFML-2.4.0\include\SFML
and, in your code, you are trying to include <SFML\Graphics.hpp>
DevC++ is searching for Graphics.hpp in the resulting path: C:\SFML\SFML-2.4.0\include\SFML\SFML\, which doesn't exists.
solution: remove \SFML from your include directories in project options. it should be simply C:\SFML\SFML-2.4.0\include