- QApplication: No such file or directory
- #include <QApplication>
- #include <QLabel>
- int main(int argc, char *argv[])
- {
- QApplication app(argc, argv);
- QLabel *label = new QLabel("Hello Qt!");
- label->show();
- return app.exec();
- }
- QT += gui
- QT -= gui
- QT += gui