Qt Creator crashes after implementing any kind of charts in Qt Designer Studio Qml

[Kiovtorov]

Hi, I am creating a small desktop app where the design is made in design studio(qml) and some backend is created in C++. I tried to implement a bar chart in design studio which led to the crash of the program. I tried to add charts to the cmake file but gave the same result. Why could that be?

[Pl45m4]

@Kiovtorov said in Qt Creator crashes after implementing any kind of charts in Qt Designer Studio Qml:

Hi, I am creating a small desktop app where the design is made in design studio(qml) and some backend is created in C++. I tried to implement a bar chart in design studio which led to the crash of the program. I tried to add charts to the cmake file but gave the same result. Why could that be?

I got a car with five seats, four tires and two doors.
What color is it?

:D

Sorry but you need to provide a lil more information on what you are doing :)
From just knowing that you've created a QML/C++ app, nobody is able to help you :)

So, please provide more context or some actual code which leads to the crash.
Also, define "App is crashing". What happens exactly? Any error message?

[Kiovtorov]

No error message. I am not that good at debugging so excuse me .The debugger stopped at

void QWidgetTextControl::setCursorWidth(int width)
{
    Q_D(QWidgetTextControl);
    if (width == -1)
        width = QApplication::style()->pixelMetric(QStyle::PM_TextCursorWidth, nullptr, qobject_cast<QWidget *>(parent()));
    d->doc->documentLayout()->setProperty("cursorWidth", width);
    d->repaintCursor();
}

esp this pat

        width = QApplication::style()->pixelMetric(QStyle::PM_TextCursorWidth, nullptr, qobject_cast<QWidget *>(parent()));

[Pl45m4]

@Kiovtorov

That's inside the Qt library right?!
But what is your code that causes the crash?
It seems that there is HTML code or style involved?

[Kiovtorov]

@Pl45m4 The code is indeed inside qt library
the code that causes the crash is

Rectangle {
        id: rectangle_33
        width: 918
        height: 362
        color: "#4dffffff"
        radius: 10
        border.color: "#727272"
        border.width: 1
        anchors.left: parent.left
        anchors.top: parent.top
        anchors.leftMargin: 28
        anchors.topMargin: 453

        ChartView {
            id: area
            x: 279
            y: 62
            width: 300
            height: 300
            AreaSeries {
                name: "AreaSeries"
                upperSeries: LineSeries {
                    XYPoint {
                        x: 0
                        y: 1.5
                    }

                    XYPoint {
                        x: 1
                        y: 3
                    }

                    XYPoint {
                        x: 3
                        y: 4.3
                    }

                    XYPoint {
                        x: 6
                        y: 1.1
                    }
                }
            }
        }
    }

There is no html or any styling. The files are .ui.qml generated from figma but they are not the problem. The app works perfect without the chart. And it only crashes in Qt Creator before the login page loads the dashboard page

        logInButton.onClicked: {
            var username = usernameField.text;
            var password = passwordField.text;
             login.logInUser(username, password);
            login.logInSuccessful()
            {
                loader.source = "Dashboard.qml";
                signInWindow.visible = false;
            }
        }

[Kiovtorov]

Found the answer in https://forum.qt.io/topic/70575/qt-charts-crash
In main.cpp you should change QGuiApplication to QApplication
QApplication app(argc, argv);