Failed to start hl process (Error: spawn hl ENOENT)

HI i have try my first heaps project with hashlink but he make a error message ( same in topic title).
Can you help me pls.

hl could not be found in your PATH. You might have to restart your computer.

all it’s ok. thank’s so much. But i need castlecd ressource load for my game but i found nothing for do that’s . can you help me. in french if you can. TY