Qt Creator ignores QML-Prototype in custom Module

  • Hi all,

    I've written a custom QML-Module and therein is a type called MyTextBlock.qml

    import QtQuick 2.3
        verticalAlignment: Text.AlignVCenter
        font.pixelSize: 34
        font.weight: Font.Bold;

    This type is inside a qrc file and is registered via a QQmlExtensionPlugin in the 'registerTypes' method in the following way

    qmlRegisterType(QUrl("qrc:/MyTextBlock.qml"), uri, 1, 0, "MyTextBlock");

    The qmldirof the extension plugin is

    module UiComponents
    plugin UiComponents
    typeinfo plugins.qmltypes

    and the generated plugins.types is

    import QtQuick.tooling 1.1
    // This file describes the plugin-supplied types contained in the library.
    // It is used for QML tooling purposes only.
    // This file was auto-generated by:
    // 'qmlplugindump.exe UiComponents 1.0 D:\plugin\release\'
    Module {
        Component {
            prototype: "QQuickText"
            name: "UiComponents/MyTextBlock"
            exports: ["MyTextBlock 1.0"]
            exportMetaObjectRevisions: [0]
            isComposite: true
            defaultProperty: "data"

    Now I create a new QML-App and import the module and set the QML_IMPORT_PATH property inside the .pro file
    The main.qml file looks like

    import QtQuick 2.3
    import QtQuick.Window 2.2
    import UiComponents 1.0
    Window {
        visible: true
        width: 360
        height: 360

    The type MyTextBlock is recognized by QT-Creator and when I hover over the import statement QT-Creator gives me a "Read typeinfo file successfully" but it complains about the color property with the message Invalid property name "color"

    The applications itself runs fine but the error messages in QT-Creator are annoying. Is here something missing that must be done to support Qt-Creator?

    As a side note. I've also a pure c++ based QObject inside the module that's also registered and when I uses this object inside an application it's properties are not marked as invalid. Somehow I think QT-Creator ignorest the "inherited" parameters of the prototype of the type. (QQuickText in case of MyTextBlock)


  • Indeed, QtCreator seems to ignore the "prototype" member in .qmltypes because the file is generated correctly.


Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.