Qmlls.exe not find C++ Custom Types

khtkg

Qmlls.exe has some warings, but the program can run.

The demo come from https://doc.qt.io/qt-6/qtqml-tutorials-extending-qml-example.html

I need to use the code prompt feature of qmls.exe, so please do not disabled qmls.exe.

Program Running:

But qmls.exe prompts some warnings:

I have tried the following methods:

Attempted restarting qmls.exe, but failed
qmlRegisterType<>(), but failed
Clear cache, but failed
Use another clean Windows system, but failed

I need to use the code prompt feature of qmls.exe, so please do not disabled qmls.exe.

This is a demo:

piechart.h

#ifndef PIECHART_H
#define PIECHART_H

#include <QQuickPaintedItem>
#include <QColor>
#include <QPen>
#include <QPainter>

class PieChart : public QQuickPaintedItem
{
    Q_OBJECT
    Q_PROPERTY(QString name READ name WRITE setName NOTIFY onNameChanged FINAL)
    Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY onColorChaged FINAL)
    QML_ELEMENT

public:
    PieChart(QQuickItem *parent = nullptr);

    QString name() const;
    void setName(const QString &name);

    QColor color() const;
    void setColor(const QColor &color);

    void paint(QPainter *painter) override;

signals:
    void onNameChanged();
    void onColorChaged();

private:
    QString m_name;
    QColor m_color;
};

#endif // PIECHART_H

piechart.cpp

#include "piechart.h"

PieChart::PieChart(QQuickItem *parent) {}

QString PieChart::name() const
{
    return m_name;
}

void PieChart::setName(const QString &name)
{
    m_name = name;
}

QColor PieChart::color() const
{
    return m_color;
}

void PieChart::setColor(const QColor &color)
{
    m_color = color;
}

void PieChart::paint(QPainter *painter)
{
    QPen pen(m_color, 2);
    painter->setPen(pen);
    painter->setRenderHints(QPainter::Antialiasing, true);
    painter->drawPie(boundingRect().adjusted(1, 1, -1, -1), 90 * 16, 290 * 16);
}

main.cpp

#include <QGuiApplication>
#include <QQmlApplicationEngine>


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

    QQmlApplicationEngine engine;
    QObject::connect(
        &engine,
        &QQmlApplicationEngine::objectCreationFailed,
        &app,
        []() { QCoreApplication::exit(-1); },
        Qt::QueuedConnection);
    engine.loadFromModule("Demo", "Main");

    return app.exec();
}

main.qml

import QtQuick
import Demo

Window {
    width: 300
    height: 200
    visible: true
    title: qsTr("Hello World")

    PieChart {
        id: aPieChart
        anchors.centerIn: parent
        width: 100; height: 100
        name: "A simple pie chart"
        color: "red"
    }

    Text {
        anchors { bottom: parent.bottom; horizontalCenter: parent.horizontalCenter; bottomMargin: 20 }
        text: aPieChart.name
    }
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.16)

project(Demo VERSION 0.1 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(Qt6 6.5 REQUIRED COMPONENTS Core Gui Qml Quick)

qt_standard_project_setup(REQUIRES 6.5)

qt_add_executable(appDemo
    main.cpp
)

set_target_properties(appDemo PROPERTIES
    WIN32_EXECUTABLE TRUE
    MACOSX_BUNDLE TRUE
)

qt_add_qml_module(appDemo
    URI Demo
    VERSION 1.0
    QML_FILES Main.qml
    SOURCES piechart.h piechart.cpp
)

# Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
# If you are developing for iOS or macOS you should consider setting an
# explicit, fixed bundle identifier manually though.
set_target_properties(appDemo PROPERTIES
#    MACOSX_BUNDLE_GUI_IDENTIFIER com.example.appDemo
    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
    MACOSX_BUNDLE TRUE
    WIN32_EXECUTABLE TRUE
)

target_link_libraries(appDemo
    PUBLIC
    Qt6::Core
    Qt6::Gui
    Qt6::Qml
    Qt6::Quick
)

include(GNUInstallDirs)
install(TARGETS appDemo
    BUNDLE DESTINATION .
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
)

Can you tell me how to solve it? I need to use the code prompt feature of qmls.exe, so please do not disabled qmls.exe.

chids

add:
set(QT_QML_GENERATE_QMLLS_INI ON)
to CMakeLists.txt, i had the same issue too

khtkg

@chids
This doesn't work for me。

I have restarted qmls.exe and cleared CmakeCache。