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OverviewFelgo 2 Support (Qt 5) › QT Creator 4.7.0 (Qt 5.11.1) C++ module is not installed error

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  • #20823

    Brandon NYC

    <div class=”clearfix post-header”></div>
    I am new to QT. I am writing a demo C++ program integrating to QT. It got the module is not installed error all the time, even I tried several tricks from internet post.
    <div class=”content”>

    Here is the code:
    ————— myclass.h
    #ifndef MYCLASS_H
    #define MYCLASS_H

    #include <QObject>
    #include <QString>

    class MyClass : public QObject
    {
    Q_OBJECT
    public:
    explicit MyClass(QObject *parent = 0);
    Q_INVOKABLE QString sayHello() const;
    };

    #endif // MYCLASS_H
    ———— myclass.cpp
    #include “myclass.h”

    MyClass::MyClass(QObject *parent)
    : QObject(parent)
    {
    }

    QString MyClass::sayHello() const
    {
    return “Hello!”;
    }
    —————- main.cpp
    #include <QGuiApplication>
    #include <QQmlApplicationEngine>
    #include <QtQml>
    #include <QQmlContext>
    #include <QQmlEngine>

    #include “myclass.h”

    int main(int argc, char *argv[])
    {
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QGuiApplication app(argc, argv);
    qmlRegisterType<MyClass>(“com.mycompany.myapplication”, 1, 0, “MyClass”);
    QQmlApplicationEngine engine;
    MyClass myClass;
    engine.rootContext()->setContextProperty(“myClass”, &myClass);
    engine.load(QUrl(QLatin1String(“qrc:/main.qml”)));
    return app.exec();
    }
    —————- main.qml
    import QtQuick 2.7
    import QtQuick.Controls 2.0
    import QtQuick.Layouts 1.0

    import com.mycompany.myapplication 1.0

    ApplicationWindow {
    visible: true
    width: 640
    height: 480
    title: qsTr(“Hello World”)

    Text {
        anchors.centerIn: parent
        text: myClass.sayHello()
    }
    

    }
    —————— myclass.pro
    QT += quick
    CONFIG += c++11

    DEFINES += QT_DEPRECATED_WARNINGS

    SOURCES +=
    main.cpp
    myclass.cpp

    RESOURCES += qml.qrc

    QML_IMPORT_PATH =

    QML_DESIGNER_IMPORT_PATH =

    qnx: target.path = /tmp/$${TARGET}/bin
    else: unix:!android: target.path = /opt/$${TARGET}/bin
    !isEmpty(target.path): INSTALLS += target
    <h2>HEADERS +=
    myclass.h</h2>
    <h2>Appreciate for any advice…..</h2>
    </div>

    #20925

    Günther
    Felgo Team
Viewing 2 posts - 1 through 2 (of 2 total)

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