QQmlContext::setContextProperty: refrence error

UbiMiles

Hi , I've searched throughout the forum and StackOverflow and I still can't seem to find a solution for this error or know what is causing it

//testing.h
#ifndef TESTING_H
#define TESTING_H

#include <QObject>

class testing : public QObject
{
    Q_OBJECT
public:
    explicit testing(QObject *parent = nullptr);
    QString test="this is working";
signals:

public slots:


};

#endif // TESTING_H

//main.cpp
#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QQmlEngine>
#include <QQmlContext>
#include "testing.h"

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

    QQmlApplicationEngine engine;
    testing tst;
    engine.rootContext()->setProperty("tester",QVariant::fromValue(&tst));
    const QUrl url(QStringLiteral("qrc:/main.qml"));
    engine.load(url);
    return app.exec();
}

//main.qml
import QtQuick 2.15
import QtQuick.Window 2.15

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("PlayGround")
    Text {
        id: testText
        text: tester.test
    }
}

I am new to the QML scene if the issue is me using a QString then apologies, however it doesn't work with any class and doesn't work with the Connections type for some reason
I tried setting the context property in different places(lines) in the code, and it still doesn't work for some reason
please help!
Thanks in advance !

KroMignon

@UbiMiles said in QQmlContext::setContextProperty: refrence error:

I tried setting the context property in different places(lines) in the code, and it still doesn't work for some reason
please help!

Hello and welcome to Qt Forum.
You use the false function, you should use setContextProperty():

engine.rootContext()->setContextProperty("tester", &tst);

UbiMiles

@KroMignon
I feel stupid yet I'm sincerely thankful
I've been stuck for a couple of days now and I don't think I would've noticed that on my own
thanks a lot !

KroMignon

@UbiMiles Your welcome... I also had done this kind of mistake days ago, don't be too rude to yourself ;)