How do i fix this: "g++ error: C:/mingw64/include,: no file or directory" and also "g++ error: C:/SFML-2.4.0/include: no such file or directory"?

I need help with this. I need to add it to my path but I can't figure out how to include it in my path. I have tried C:/SFML excetra excatera but i can't figure it out.