Hi,

I am a complete beginner in Qt. I have just installed Qt, and tried to run a simple hello world application:

#include <QApplication>
#include <QPushButton>

int main(int argc, char* argv[])
{
QApplication app(argc, argv);
QPushButton hello("Hello World");
hello.resize(100,30);
hello.show();
return app.exec();

}

I have compiled it by doing the following:

qmake -project
qmake
make

The project compiles fine, but when I try to run it I get a segmentation fault.

If I replace the QApplication above with QCoreApplication, it works.

Can anyone tell me why this error might be occurring?
(As far as I can see, it is linking with -lQtGui fine).