Qt6 with cmake and Visual Studio 17 2022 generator

Tobxon

Re: Could not find a configuration file for package "Qt6" that is compatible with requested version "".

I think I am having the same problem as in the above topic.

I am trying to build a cmake project using Qt6 with the Visual Studio 17 2022 generator. I get the same error message:

1> [CMake]   Could not find a configuration file for package "Qt6" that is compatible
1> [CMake]   with requested version "".
1> [CMake] 
1> [CMake]   The following configuration files were considered but not accepted:
1> [CMake] 
1> [CMake]     E:/Dev/3rdParty/Qt/Qt6.4.2/6.4.2/msvc2019_64/lib/cmake/Qt6/Qt6Config.cmake, version: 6.4.2 (64bit)

When I use Ninja it works.
But I can't use ninja as a generator on my project due to other restrictions.

Here I can offer a reduced example that shows the same behaviour (buildable with Ninja, but not with Visual Studio):

cmake_minimum_required(VERSION 3.23)

project(MY_PROJECT LANGUAGES CXX)

#QT
find_package(Qt6 REQUIRED 
    COMPONENTS Widgets Gui Core
)

set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTOUIC ON)

qt_add_executable(MY_PROJECT_GUI MACOSX_BUNDLE WIN32
    "main.cpp"
)
target_sources(MY_PROJECT_GUI
    PRIVATE
        "MainWindow.cpp"
		"MainWindow.h"
        "MainWindow.ui"
)

target_link_libraries(MY_PROJECT_GUI 
    PRIVATE	
        Qt::Widgets Qt::Gui Qt::Core
)

Is there anything I can do to make it work or does Qt6 basically not support Visual Studio generators?

cristian-adam

@Tobxon said in Qt6 with cmake and Visual Studio 17 2022 generator:

(64bit)

That's the clue. You are trying to configure a x86 project with a Visual Studio 17 2022 generator.

You forgot to pass the -A Win64 argument on command line. Or was it -A x64? One of these two works 😊

Tobxon

@cristian-adam Thanks a lot.
The argument is set in my CMakeSettings file and I didn't recognize that Visual Studio 17 2022 implicitly means Win32. I set it to Win64 and it works.

Sorry for thinking that this doesn't work in general. I thought I already made a boiled down example, but obviously missed that one.