[QT][QML] Unable to use QTLocation and QTPositioning in my QML view

Shadow.01

Dear users,
in my QT/QML project created by using QT 6.1 / OS Ubuntu 20.04 I am using the QTMapView component. In order to complete my task, I tried to install QTLocation and QTPosition by using the following command:

sudo apt install qml-module-qtlocation qml-module-qtpositioning

As suggested from the following topic:

https://askubuntu.com/questions/1115899/qtlocation-and-qtpositioning-not-installed

After that, I tried to import in my QML view the QTLocation and QTPosition with the following code

import QtLocation 5.12
import QtPositioning 5.12

But I receive a "QML Module not found" message for both import.

Below, you can find also the CMakeLists.txt file of the project:

cmake_minimum_required(VERSION 3.14)

project(myapp VERSION 0.1 LANGUAGES CXX)

set(CMAKE_INCLUDE_CURRENT_DIR ON)

set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(QT NAMES Qt6 COMPONENTS Core Quick REQUIRED)
find_package(Qt6 COMPONENTS Core Quick REQUIRED)

set(CMAKE_EXPORT_COMPILE_COMMANDS 1)

set(PROJECT_SOURCES
        main.cpp
        qml.qrc
        images.qrc
)

qt_add_executable(myapp
    MANUAL_FINALIZATION
    ${PROJECT_SOURCES}
)

target_compile_definitions(myapp
  PRIVATE $<$<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>:QT_QML_DEBUG>)
target_link_libraries(myapp
  PRIVATE Qt6::Core Qt6::Quick)

set_target_properties(myapp PROPERTIES
    QT_QML_MODULE_VERSION 1.0
    QT_QML_MODULE_URI com.my.myapp
)

list(APPEND QML_IMPORT_PATH .)

qt6_qml_type_registration(myapp)
qt_import_qml_plugins(myapp)
qt_finalize_executable(myapp)

Did I missed something? How can I solve the problem and import correctly the map components? Thank you very much; I tried to be more detailed as possible but if you need other info don't hesitate to ask me.

VRonin

1 I don't know. there might be but i can't answer.
2 sure, just use maintenancetool to install Qt 5.15 for your compiler. you don't need 2 separate Qt Creators, you can have multiple kits in the same ide

VRonin

You need to add those modules to find_package and target_link_libraries
find_package(Qt COMPONENTS Core Quick Location Positioning REQUIRED)
target_link_libraries(myapp PRIVATE Qt::Core Qt::Quick Qt::Location Qt::Positioning)

The bad news is that both those modules are still not ported to Qt 6. Positioning will come in 6.2 (scheduled for september 2021) while Location doesn't have a release date yet given the high dependency on OpenGL of that module.

Shadow.01

First, thank you very much for your reply; you really saved me from a big time wasting.

In this case I would ask, it is an other way to show a map inside a QML view without this component?
If not, how can I simply downgrade my app to QML5 (EDIT: In case, I would also ask if it is possible to have 2 different QTCreator for 2 version, at the same time)?

Thanks again

VRonin

1 I don't know. there might be but i can't answer.
2 sure, just use maintenancetool to install Qt 5.15 for your compiler. you don't need 2 separate Qt Creators, you can have multiple kits in the same ide

Shadow.01

Thank you very much!