My QtQuick 2 extension plugin shared library is not compiling.

yegender

Hi,
I want to make a shared library of my project. As default qt creator generates a static library from the generated CMakeLists.txt. When I changed it to the SHARED I got this error:
CMakeLists.txt:33: error: Target "IgniteUIplugin" of type MODULE_LIBRARY may not be linked into another target. One may link only to INTERFACE, OBJECT, STATIC or SHARED libraries, or to executables with the ENABLE_EXPORTS property set.

and Here is my CMakeLists.txt

cmake_minimum_required(VERSION 3.16)

project(IgniteUI VERSION 0.1 LANGUAGES CXX)

set(CMAKE_AUTOMOC ON)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(QT_QML_OUTPUT_DIRECTORY  ${CMAKE_BINARY_DIR})

find_package(Qt6 6.2 COMPONENTS Quick REQUIRED)

qt_add_library(IgniteUI SHARED)
qt_add_qml_module(IgniteUI
    URI IgniteUI
    VERSION 1.0
    QML_FILES IgniteUIControls.qml
    SOURCES igniteui.cpp igniteui.h
)

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

target_include_directories(IgniteUI PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})

# Example Project
qt_add_executable(ExampleProject example/example.cpp)
qt_add_qml_module(ExampleProject
    URI ExampleProjectApp
    VERSION 1.0
    QML_FILES example/example.qml
)
target_link_libraries(ExampleProject PRIVATE Qt6::Quick IgniteUIplugin)
target_compile_definitions(ExampleProject PRIVATE $<$<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>:QT_QML_DEBUG>)

Cheers

yegender

I think this line in my example.cpp:

Q_IMPORT_QML_PLUGIN(IgniteUIPlugin)

is causing these issues. maybe it requires the static library and I am providing it the shared library. Does there is a way to make it to use the shared instead of the static library.

Cheers

yegender

I fixed it by removing that line and added the full path of the library

glarkham

Don't mean to necro-post, but this forum came up on google and I found a more satisfying solution to the same problem for me.

In the CMakeLists.txt file where I define the plugin, I simply added the following:

qt_add_library(PressureModel STATIC)

To indicate the library as static rather than MODULE_LIBRARY.

Full CMakeLists.txt file I used for reference:

find_package(Qt6 REQUIRED COMPONENTS RemoteObjects)

qt_add_library(PressureModel STATIC)
qt6_add_qml_module(PressureModel
    URI PressureModel
    VERSION 1.0
    SOURCES
        PressureModel.cpp
        PressureModel.h
    RESOURCE_PREFIX "/"
)

qt6_add_repc_replicas(PressureModel PressureModel.rep)

target_link_libraries(PressureModel PUBLIC Qt6::RemoteObjects)