Problem in Qt Creator 8.0.1 (with Qt 6.4)

[MammutReal]

Hi,

I try to use QArchive with CMake.

I created a new qt console test project and I copy-pasted almost everything from this page:
https://antonyjr.in/QArchive/docs/AddingQArchive.html

My root's CMakeLists.txt:

CMAKE_MINIMUM_REQUIRED(VERSION 3.2)
project(MyCoolApplication)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_INCLUDE_CURRENT_DIR ON)

add_subdirectory(libs)

find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Core)
find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Core)


add_executable(MyCoolApplication main.cpp)
target_link_libraries(MyCoolApplication PUBLIC Qt::Core)
target_link_libraries(MyCoolApplication PRIVATE QArchive)

My CMakeLists.txt in the libs folder:

CMAKE_MINIMUM_REQUIRED(VERSION 3.2)
add_subdirectory(QArchive)

And as soon as I save the CMakeLists.txt, I get this error:
C:\Projects\MyCoolApplication\libs\QArchive\CMakeLists.txt:98: error: Target "QArchive" links to: LibArchive::LibArchive but the target was not found. Possible reasons include: * There is a typo in the target name. * A find_package call is missing for an IMPORTED target. * An ALIAS target is missing.

It has a problem with this line:
target_link_libraries(QArchive PUBLIC Qt${QT_VERSION_MAJOR}::Core LibArchive::LibArchive)

I'm very noob with packages so I don't really know what is the problem.

Can you look into it?

Thanks and Best Regards,
mammut

[antony-jr]

@MammutReal QArchive depends on libarchive, have you installed that? You have to install along with all the dependencies of libarchive too.

See libarchive build instructions for Windows: https://github.com/libarchive/libarchive/wiki/BuildInstructions#building-on-windows

Windows is still a mess for software development for this reason. Consider learning Conan C++ Manager which might make life easy for you in Windows. Anyways I will try to give you a concise instruction for using QArchive in Windows later today.

If you were in Linux this would have been a piece of cake 😆

Reference: https://antonyjr.in/QArchive/docs/Installation.html

[MammutReal]

@antony-jr: oh, I didn't install it, sorry. I will look into those instructions, thanks for the link.

"Windows is still a mess for software development for this reason"

Yeah, I'm experiencing that right now. It was much easier with python, just created a venv, then pip install, and it was done.
But I have to learn the c++ way now. I'll look into the Conan c++ manager, too.

"Anyways I will try to give you a concise instruction for using QArchive in Windows later today."

Oh, that would be very kind of you, thank you in advance.

"If you were in Linux this would have been a piece of cake"

That's another thing I'll have to learn. :)