Compiler can't find Graphics.hpp?

Question

main.cpp:

#include "SFML\Graphics.hpp"

int main()
{
    sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
    sf::CircleShape shape(100.f);
    shape.setFillColor(sf::Color::Green);

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();
        }

        window.clear();
        window.draw(shape);
        window.display();
    }

    return 0;
}

enviroment variables:

PATH:

C:\msys64\mingw64\bin 
C:\SFML-2.6.1\include

but it keeps saying to console:

main.cpp:1:10: fatal error: SFML/Graphics.hpp: No such file or directory
    1 | #include "SFML/Graphics.hpp"
      |          ^~~~~~~~~~~~~~~~~~~
compilation terminated.

i just don't know what to do yet. I was trying to write path via "/" but it still doesn't work, though.

folders of C disk:

folders of C disk

Answer 1

In your g++ command line, add the flag -I... like this: g++ -I C:\SFML-2.6.1\include, and try again. (It doesn't matter whether there is a space after -I.) Alternatively, you may set the CPLUS_INCLUDE_PATH environment value to C:\SFML-2.6.1\include.

After it succeeds, you will likely get an error from the linker. To fix that, set a library path for linking. That may look something like g++ -L C:\SFML-2.6.1\lib. Alternatively set the LIBRARY_PATH environment variable to C:\SFML-2.6.1\lib.