When creating the QML extension plugin (Qt Quick 2 Extension Plugin), the content of the plugin.qmltypes file generated by using the ChartView of the QtCharts module is empty

The command window used is Qt 5.15.2 (MSVC 2019 64 bit).

Detailed questions：

When I was creating the QML extension plugin (Qt Quick 2 Extension Plugin), when my component used the ChartView of the QtCharts module (i.e. using ChartView in the QML file), and after compiling the custom extension, when using the command（”qmlplugindump -nonrelocatable My.Controls 1.0 D:/QtWorkSpace/My-Controls/imports > D:/QtWorkSpace/My-Controls/imports/plugin.qmltypes“） to generate the plugin. qmltypes file, the file content was empty and there were no errors or prompts after executing the command; When I comment out the ChartView in all qml files in the extension plugin, then compile it, and finally execute the command（”qmlplugindump -nonrelocatable My.Controls 1.0 D:/QtWorkSpace/My-Controls/imports > D:/QtWorkSpace/My-Controls/imports/plugin.qmltypes“） to generate the plugin. qmltypes file, the content is generated normally