QMainWindow: No such file or directory

[JPNaude]

Hi there

I'm running into a very strange, or very simple problem. I have a few files in a .pro file that gets compiled into a dll. A couple of these files (MainWindow.h/cpp) does not seem to find any dependencies.

Thiis is the important parts of my .pro file

TEMPLATE        = lib
CONFIG            += qt gui
DEPENDPATH      += . source ../../include ../../source ../../../Framework/Headers/Interfaces ../../../Framework/Headers/Common
INCLUDEPATH     += . source ../../include ../../source ../../../Framework/Headers/Interfaces ../../../Framework/Headers/Common
 
DEFINES         += VCL_MAKE_DLL2
 
# Input
HEADERS += source/AboutBox.h \
           source/MainWindow.h \
           source/MainWindowComponent.h \
           source/SplashScreen.h
 
FORMS   += source/AboutBox.ui
 
SOURCES += source/AboutBox.cpp \
           source/MainWindow.cpp \
           source/MainWindowComponent.cpp 
 
RESOURCES += MainWindow.qrc

TEMPLATE        = lib
CONFIG            += qt gui
DEPENDPATH      += . source ../../include ../../source ../../../Framework/Headers/Interfaces ../../../Framework/Headers/Common
INCLUDEPATH     += . source ../../include ../../source ../../../Framework/Headers/Interfaces ../../../Framework/Headers/Common

DEFINES         += VCL_MAKE_DLL2

# Input
HEADERS += source/AboutBox.h \
           source/MainWindow.h \
           source/MainWindowComponent.h \
           source/SplashScreen.h
           
FORMS   += source/AboutBox.ui

SOURCES += source/AboutBox.cpp \
           source/MainWindow.cpp \
           source/MainWindowComponent.cpp 

RESOURCES += MainWindow.qrc

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Now what I can't understand is that AboutBox compiles fine and it finds the Qt Gui library without any problems. The top of the MainWindow and AboutBox headers are shown below:

#ifndef MAIN_WINDOW_H
#define MAIN_WINDOW_H
 
#include <QMainWindow>

#ifndef MAIN_WINDOW_H
#define MAIN_WINDOW_H

#include <QMainWindow>

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#ifndef ABOUT_BOX_H
#define ABOUT_BOX_H
 
#include <GCF/Common.h>
#include <QDialog>

#ifndef ABOUT_BOX_H
#define ABOUT_BOX_H

#include <GCF/Common.h>
#include <QDialog>

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Can someone please help me understand how this is possible...
Thanks
Jaco

[ktk]

The line "CONFIG += qt gui" looks fishy. Why is it there?

[JPNaude]

I added it because it complained about not finding any Qt related classes, hoping that it would fix it.

[jpn]

What does the compiler command look like?