Why does my QML Plugin fails to load when deployed, while it works inside the build dir?

[fama_lab3d]

Hello,
I have a QML plugin that is loaded at runtime.
If I run the app from the build dir, it works flawlessly.
If I do the same with the deployed application, it fails.

The build dir is structured like that:

build\
    MyApp.exe
    GUI\
      Something\
        Other\
          GUI_SOMETHING_OTHERplugin.dll

While the deploy is generated by Qt's deploy script (CMAKE):

deploy\
  bin\
    <files deployed by qt deploy script>
    MyApp.exe
  qml\
    GUI\
      Something\
        Other\
          GUI_SOMETHING_OTHERplugin.dll
<other files by qt>

When it starts, the engine import paths are the following:

• qrc:/
• <deploy-dir>/bin
• qrc:/qt-project.org/imports
• C:/Qt/6.4.2/msvc2019_64/qml
• <deploy-dir>/qml

The warning it gives is the following:

Warning: QQmlApplicationEngine failed to load component
Warning: qrc:/MillManager/main.qml:7:1: Cannot load library <deploy-dir>\qml\GUI\Something\Other\GUI_SOMETHING_OTHERplugin.dll: The specified module could not be found.

It's strange, because the .dll exists! And it's in that path!

[dheerendra]

May be your library depends on some other library. This may be missing in path.

[fama_lab3d]

@dheerendra it's actually just 1 .qml file built with qt_add_qml_module, nothing else.

[dheerendra]

what is the import statement in main.qml ?

[fama_lab3d]

@dheerendra I'm generating a QML file at runtime and load it with a Loader:

ListView {
  delegate: Loader {
    sourceComponent: Qt.createComponent(model.qmlFile)
  }
}

The generated file is very simple:

import GUI.Something.Other

GUI {
}