Getting an error, "Haxe version check failed: "'haxe.exe' is not recognized as an internal or external command, operable program or batch file."

Question

Me and my friend are creating a game through HaxeFlixel. We share a GitHub repository, we are both using VS Code, all of our programs are on the same version, and yet I'm still getting this error.

I've tried about everything to fix this. Reinstalling programs, deleting and re-cloning the project, change json files, and more. Same result from everything.