I’m performing some basic test of QML and C++ source integration.
I’m using QT 6.5:

Here is my code QML:

import QtQuick 2.15
import QtQuick.Controls 2.15
import QtQuick.Window 2.15
import Qt3D.Core 2.15
import Qt3D.Render 2.15
import Qt3D.Input 2.15
import Qt3D.Extras 2.15

import com.myCode 1.0

Rectangle {
width: 640
height: 480
Item {
    anchors.centerIn: parent

    // Button to connect to server
    Button {
        text: "Connect"
        onClicked: {
            tcpClient.connectToServer("localhost", 8010)
        }
    }
}

    // Expose TCP client object to QML
    MyWindow {
    id: tcpClient
    }
}

My CPP code looks like this:

#include "mywindow.h"
#include "qqml.h"
#include <QTcpSocket>

MyWindow::MyWindow(QObject *parent) : QObject(parent)
{
    // Implement your TCP connection code here
    // Register C++ class with QML engine
    qmlRegisterType<MyWindow>("com.myCode", 1, 0, "MyWindow");
}

void MyWindow::connectToTCP() {
    QTcpSocket* socket = new QTcpSocket(this);
    connect(socket, SIGNAL(connected()), this, SLOT(onConnected()));
    connect(socket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(onError(QAbstractSocket::SocketError)));
    connect(socket, SIGNAL(stateChanged(QTcpSocket::SocketState)), this, SLOT(onStateChanged(QTcpSocket::SocketState)));
    connect(socket, SIGNAL(readyRead()), this, SLOT(onReadyRead()));
    socket->connectToHost("localhost", 8010);
}

If required I can add the header file and the cmake.
The source code compile fine, however as soon as I start debugging, I receive the message:

module "com.myCode" is not installed

Is there anyone that can help me?