QML Module Not Found

[c0ntrarian]

Hello, I have been scratching my head on this problem for 3 days.

How do I correctly import a custom QML Module into QT Designer. My code compiles fine and works in QT Creator, but when I bring it to QT Design Studio, I cannot seem to get QT Design Studio to be happy with custom modules.

CMake:

cmake_minimum_required(VERSION 3.21.1)

option(LINK_INSIGHT "Link Qt Insight Tracker library" ON)
option(BUILD_QDS_COMPONENTS "Build design studio components" ON)

project(GEO_OSApp LANGUAGES CXX)

set(CMAKE_AUTOMOC ON)

find_package(Qt6 6.2 REQUIRED COMPONENTS Core Gui Qml Quick SerialPort)


if (Qt6_VERSION VERSION_GREATER_EQUAL 6.3)
    qt_standard_project_setup()
endif()

qt_add_executable(GEO_OSApp src/main.cpp
    src/serial.h src/serial.cpp
    src/admin.h src/admin.cpp
    src/radialbar.h src/radialbar.cpp
    src/data.h src/data.cpp
)

qt_add_resources(GEO_OSApp "configuration"
    PREFIX "/"
    FILES
        qtquickcontrols2.conf
)

target_link_libraries(GEO_OSApp PRIVATE
    Qt6::Core
    Qt6::Gui
    Qt6::Qml
    Qt6::Quick
    Qt6::SerialPort
)

set(QT_QML_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/qml)
set(QML_IMPORT_PATH ${QT_QML_OUTPUT_DIRECTORY}
    CACHE STRING "Import paths for Qt Creator's code model"
    FORCE
)

if (BUILD_QDS_COMPONENTS)
    include(${CMAKE_CURRENT_SOURCE_DIR}/qmlcomponents)
endif()

include(${CMAKE_CURRENT_SOURCE_DIR}/qmlmodules)

if (LINK_INSIGHT)
    include(${CMAKE_CURRENT_SOURCE_DIR}/insight)
endif ()

include(GNUInstallDirs)
install(TARGETS GEO_OSApp
    BUNDLE DESTINATION .
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
)

# make IDEs aware of the QML import path
set(QML_IMPORT_PATH ${PROJECT_BINARY_DIR}/qml CACHE PATH
    "Path to the custom QML components defined by the project")

main.cpp:

int main(int argc, char *argv[])
{
    set_qt_environment();

    QGuiApplication app(argc, argv);

    // Register classes with QML
    qmlRegisterType<Serial>("Serial", 1, 0, "Serial");
    qmlRegisterType<Admin>("Admin", 1, 0, "Admin");
    qmlRegisterType<RadialBar>("CustomControls", 1, 0, "RadialBar");
.......

qmldir:

Module GEO_OS
singleton Constants 1.0 Constants.qml
EventListSimulator 1.0 EventListSimulator.qml
EventListModel 1.0 EventListModel.qml
DirectoryFontLoader 1.0 DirectoryFontLoader.qml
CustomComponents 1.0 RadialBar.qml

[c0ntrarian]

Solved by updating importPaths in .qmlproject and creating a NEW qmldir file in the actual folder (PROJECT_NAME/imports/MODULE_NAME/qmldir) with the following properties:

module RadialBar
RadialBar 1.0 RadialBar.qml

Move the plugin code into PROJECT_NAME/imports/MODULE_NAME/ and call it using import RadialBar 1.0.

Then restart Qt Design Studio.