Hello, I am unable to determine why I receive this error.

Code:
/* Prints string s */
	void cio_puts(const char *s){
	cputs(s);
	}
With the included libraries,
Code:
#include <windows.h>
#include <conio.h>
Not sure what the cause of this is.

Appreciate any help whatsoever.

Compiler is MinGW with Dev-CPP+