QML in C++ App error

[Schneidi]

I have difficulties with QML in a C++ app.

I tried the tutorial for "Using QML in C++ Applications".
I just copied the code:

@#include <QApplication>
#include <QtDeclarative/QDeclarativeView>
#include <QtDeclarative/QDeclarativeContext>

int main(int argc, char *argv[])
{
QApplication app(argc, argv);

QDeclarativeView view;
QDeclarativeContext *context = view.rootContext();
context->setContextProperty("backgroundColor",
                            QColor(Qt::yellow));

view.setSource(QUrl::fromLocalFile("main.qml"));
view.show();

return app.exec();

}@

but I get some error messages:

debug/main.o: In function Z5qMainiPPc': /main.cpp:9: undefined reference to _imp___ZN16QDeclarativeViewC1EP7QWidget'
/main.cpp:10: undefined reference to _imp___ZN16QDeclarativeView11rootContextEv' /main.cpp:12: undefined reference to _imp___ZN19QDeclarativeContext18setContextPropertyERK7QStringRK8QVariant'
/main.cpp:14: undefined reference to _imp___ZN16QDeclarativeView9setSourceERK4QUrl' /main.cpp:17: undefined reference to _imp___ZN16QDeclarativeViewD1Ev'
/main.cpp:17: undefined reference to `_imp___ZN16QDeclarativeViewD1Ev'
collect2: ld returned 1 exit status
mingw32-make[ 1 ]: *** [debug\C++_QML.exe] Error 1
mingw32-make: *** [debug] Error 2

I use the Qt Creator 2.0.8 snapshot because in the Creator 2.0 I can't create QML projects.

Do you have an idea what could cause this problem ?

[DenisKormalev]

Please check that you use Qt library with enabled Declarative and have QT += declarative in your .pro file

[Schneidi]

Oh thanks the "QT += declarative" statement was missing in my .pro file.

I know this is a greenhorn mistake but sometime I'll get even this ; )