about INCLUDEPATH

[youfulan2015]

in my pro
INCLUDEPATH +=C:/Users/Lee/Documents/untitled5
and some head file are in there;
but however when i want to define a variable in that head file ,i failed
error: 'Untitled5' was not declared in this scope
but if i add the real path to the cpp file where the define appare it works
#include "../untitled5/untitled5.h"
why?
^

[A Former User]

hi.

INCLUDEPATH +=C:/Users/Lee/Documents/untitled5

this just add to include area. just folder(directory).
in path, untitled5 is directory name. right?

so ,
INCLUDEPATH +=C:/Users/Lee/Documents/untitled5
and
#include "untitled5.h"

then they work you want.

if it has confusion, you should change the directory name or the file name..