See attached reproducer example.

A Module with QML files not in the root directory but in a e.g. "Qml" subdirectory has two Components, one beeing internal and used by the other.

When using the not-internal Component in an application this fails with:

qrc:/qt/qml/internalReproducer/Main.qml:9:5: Type MyItemControls unavailable
qrc:/qt/qml/internalReproducerModule/Qml/MyItemControls.qml:10:5: InternalType is not a type

qt_policy(
    SET QTP0004 OLD
)

Is a workaround, but that limits having the internal types in the same directory as the public ones.

I'd like to have this directory Structure:

MyModule

• CMakeLists.txt
• Qml (directory)
  • MyPublicComponent.qml (using MyInternalComponent)
  • private (directory)
    • MyInternalComponent.qml
• < C++ files >

https://bugreports.qt.io/browse/QTBUG-111763 discussed this a lot but to me it seems this scenario is still not fully supported.