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plugin verification data mismatch



  • Hello to all of you !

    I have a strange problem declaring a collection of designer plugins.

    I have several designer plugins, who work well individually. Now, I'd like to group them using a collection of plugins, such as QDesignerCustomWidgetsCollectionInterface.

    However, when I do this, the designer doesn't want to load the plugins. Instead, I have an error message : "plugin verification data mismatch". And another one saying that the collection plugin could not be loaded because of the undefined symbol corresponding to the single plugin library.

    I use Qt 5.5.0.

    Here is an excerpt of my code:

    PluginClassName.hpp:

    class QDESIGNER_WIDGET_EXPORT PluginClassName : public QObject,
      public QDesignerCustomWidgetInterface
    {
        Q_OBJECT
        Q_INTERFACES(QDesignerCustomWidgetInterface)
        ...
    };
    

    WidgetsCollection.hpp:

    class WidgetsCollection: public QObject,
            public QDesignerCustomWidgetCollectionInterface
    {
        Q_OBJECT
        Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QDesignerCustomWidgetCollectionInterface")
        Q_INTERFACES(QDesignerCustomWidgetCollectionInterface)
        ...
        private:
            QList<QDesignerCustomWidgetInterface*> m_allWidgets;
    };
    

    WidgetsCollection.cpp:

    WidgetsCollection::WidgetsCollection(QObject* parent) :
        public QObject(parent)
    {
        m_allWidgets << new PluginClassName(this);
    }
    

    Thanks a lot for your help !


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