'QtGui/QMainWindow' file not found

boehsermoe

Hi,
I can't build my project, with the Error 'QtGui/QMainWindow' file not found at the line:

@#include <QtGui/QMainWindow>@

The autocomplete doesnt show the 'QtGui' or something, only 'QtUiTools'.
I looked in the Libraries/Frameworks (OS X) but there are no Qt files.

Thank for help

walur

use in projectfile:

QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
...

using Qt 5.x, write only:
...
#include <QMainWindow>
...

that should work
greetings walur

boehsermoe

I already tried it...

SGaist

Hi and welcome to devnet,

What version of Qt are you using on what version of OS X ?

boehsermoe

Qt 5.1.1 and OS X 10.9

SGaist

The I would recommend to change directly to 5.2, it has better support for 10.9.

Also, did you change the #include <QtGui/QMainWindow> line ? In Qt 5 it's in the QtWidgets module

Sravanthi

@SGaist I am compiling qt 4.8.6 windows code over linux with GDB, I am too facing 'QMainWindow' not found.

I am using the below lines,
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

Thanks
Sravanthi

SGaist

Do you have #include <QMainWindow> only ? Or do you have the module before ? If the second, just remove the module from the include line.

Sravanthi

@SGaist #include <QMainWindow> is palced on top.

The following link is asking to edit the cmake file, where can i find the cmake file ?

SGaist

You are using a .pro file so it doesn't apply.

How did you install Qt ?