Cannot find include file QtCore?

Question

I'm writing a multithreaded program in C++, and plan to use QThread. Problem is when I try to #include <QtCore>... I get an error... Cannot find include file QtCore.

What gives?

Answer 1

You probably have the include directories point to root include directory of Qt, so try:

#include <QtCore/QtCore>

... or... you don't have the include directories refering to Qt in your compiler command line.