Problems with QtQuick wizard generated project

[anda_skoa]

I didn't understand your question.

you wrote "when I start debugging" and I was asking what exactly you were doing.
Did you run the application or just "run" the QML file.

What I don't understand is why the import statement inside main.qml file is not recognized.

It should, hence my question to narrow down possible errors.

Could you please try to create a QtQuick project like this, add my files and see if everything works on your side? Maybe an experienced Qt programmer like you could understand the problem better than I can do.

I can do that if you attach a buildable example.

Cheers,
_

[enrico5th]

I run the whole application.
You can find the whole project attached to this post.

[anda_skoa]

After I got it to build, it worked for me.

provaintegrazione.zip

Cheers,
_

[enrico5th]

Does it work without any modification? When I build and run it, a little white window appears on the screen (instead of a big red rectangle), then I look at the Application Output window and the message "module "APP_CHILD" is not installed import APP_CHILD 1.0" has been output there. I tried on two different platform and I got the same problem. I'm now asking to myself what's the difference between my platform and yours.

[anda_skoa]

Lets try with a very simple example

main.cpp

#include <QtQml>
 
int main(int argc, char **argv)
{
    QCoreApplication app(argc, argv);
 
    qmlRegisterType<QTimer>("APP_CHILD", 1, 0, "AppChild");
 
    QQmlEngine engine;
 
    QQmlComponent component(&engine);
    component.setData("import APP_CHILD 1.0\n\nAppChild { }", QUrl());
    qDebug() << "created object=" << component.create();
 
    return 0;
}

#include <QtQml>

int main(int argc, char **argv)
{
    QCoreApplication app(argc, argv);
    
    qmlRegisterType<QTimer>("APP_CHILD", 1, 0, "AppChild");
    
    QQmlEngine engine;
    
    QQmlComponent component(&engine);
    component.setData("import APP_CHILD 1.0\n\nAppChild { }", QUrl());
    qDebug() << "created object=" << component.create();

    return 0;
}

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appchildtest.pro

TEMPLATE = app
TARGET = appchildtest
INCLUDEPATH += .
 
# Input
SOURCES += main.cpp
 
QT += qml

TEMPLATE = app
TARGET = appchildtest
INCLUDEPATH += .

# Input
SOURCES += main.cpp

QT += qml

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Executing that should give you an output like this:

created object= QTimer(0xc2b250)

Once you've veryfied that, add you class and register it instead of QTimer.

Cheers,
_

[enrico5th]

Your example works perfectly, this makes me think there's some problem in the way I've attached the main.qml file in my project. But that was done automatically by the Qt Quick wizard for projects creation. This thing is making me crazy!!!

[anda_skoa]

Have you tried running the program from a terminal/shell?

Just to make sure you are actually running the program, not just "running" the QML file.

Cheers,
_