[package] qt/6.6.0: lib/cmake/Qt6Qml/Qt6QmlConfig.cmake is missing

[ikoruk]

Description

I can't figure out why but lib/cmake/Qt6Qml/Qt6QmlConfig.cmake is missing. This prevents qml plugins from being deployed and probably causes other issues.

Package and Environment Details

• Package Name/Version: qt/6.6.0
• Operating System+version: MacOS 14.1.1
• Compiler+version: Clang 15
• Conan version: conan 1.61.0
• Python version: Python 3.11.6

Conan profile

[settings]
os=Macos
os_build=Macos
arch=armv8
arch_build=armv8
compiler=apple-clang
compiler.version=15
compiler.libcxx=libc++
build_type=Release
compiler.cppstd=20
os.version=13.0
[options]
[conf]
[build_requires]
[env]

Steps to reproduce

Install qt and check if lib/cmake/Qt6Qml/Qt6QmlConfig.cmake exists.
It exists in the homebrew installation.

Logs

[ericLemanissier]

There are some answers in https://github.com/conan-io/conan-center-index/blob/master/docs/faqs.md#why-are-cmake-findconfig-files-and-pkg-config-files-not-packaged
Basically you have to use the CMakeDeps generator. Also, don't forget to enable option qt/*:qtdeclarative=True

[ikoruk]

I already do both. All the other cmake files are indeed packaged including Qt6QmlConfigExtras.cmake for example, it's just this one file that is missing. This prevents qt_generate_deploy_qml_app_script(...) from working saying qt_add_qml_module was not run when it was.

[ericLemanissier]

All the other cmake files are indeed packaged including Qt6QmlConfigExtras.cmake for example

no they are not "packaged", as explained in the link I posted in the last message. all the cmake config-files and find-modules are explicitely removed

Please give us at least the commands you are running, with the console output and the associated conanfile

EDIT: did you also enable qt/*:qtshadertools=True ?

[ikoruk]

All the rest of the cmake files are indeed in the package, whether you want to call that "packaged" or not. And yes I have enabled both qtdeclarative and qtshadertools. Here is the output of running an ls on the conan package:

ls ~/.conan/data/qt/6.6.0/_/_/package/ac05783a2e9af9031896768d0ba1c2f375fa0cb5/lib/cmake/Qt6Qml/Qt6QmlConfig*.cmake

~/.conan/data/qt/6.6.0/_/_/package/ac05783a2e9af9031896768d0ba1c2f375fa0cb5/lib/cmake/Qt6Qml/Qt6QmlConfigExtras.cmake
~/.conan/data/qt/6.6.0/_/_/package/ac05783a2e9af9031896768d0ba1c2f375fa0cb5/lib/cmake/Qt6Qml/Qt6QmlConfigVersion.cmake
~/.conan/data/qt/6.6.0/_/_/package/ac05783a2e9af9031896768d0ba1c2f375fa0cb5/lib/cmake/Qt6Qml/Qt6QmlConfigVersionImpl.cmake

And here on a homebrew installation of qt:

ls /opt/homebrew/opt/qt6/lib/cmake/Qt6Qml/Qt6QmlConfig*.cmake

/opt/homebrew/opt/qt6/lib/cmake/Qt6Qml/Qt6QmlConfig.cmake		/opt/homebrew/opt/qt6/lib/cmake/Qt6Qml/Qt6QmlConfigVersion.cmake
/opt/homebrew/opt/qt6/lib/cmake/Qt6Qml/Qt6QmlConfigExtras.cmake		/opt/homebrew/opt/qt6/lib/cmake/Qt6Qml/Qt6QmlConfigVersionImpl.cmake

Without this file, cmake returns the following error:

CMake Error at !/.conan/data/qt/6.6.0/_/_/package/ac05783a2e9af9031896768d0ba1c2f375fa0cb5/lib/cmake/Qt6Qml/Qt6QmlDeploySupport.cmake:51 (message):
  No QML imports information recorded for target Project.  The target must
  be an executable and qt_add_qml_module() must have been called with it.  If
  using a CMake version lower than 3.19, ensure that the executable is
  manually finalized with qt_finalize_target().  Missing file:

      .../build/Release/.qt/deploy_qml_imports/Project.cmake
Call Stack (most recent call first):
  .qt/deploy_qml_app_Project_a7259b822b.cmake:5 (qt_deploy_qml_imports)

This is even though the target is an executable and qt_add_qml_module was called.

To fix this I need to include explicitly [QT_PACKAGE_FOLDER]/lib/cmake/Qt6Qml/Qt6QmlConfigExtras.cmake but this should not be necessary and is very hacky. As far as I was able to track down it is called from Qt6QmlConfig.cmake which is missing.

I see that conan takes the approach to use its own cmake files but then it needs to explicity include the extra cmakes, specifically Qt6QmlMacros.cmake;Qt6QmlConfigExtras.cmake;Qt6QmlFindQmlscInternal.cmake

[ericLemanissier]

Ok, thanks for the precision, things are clearer now.
I just added all the *Extras.cmake files as part of https://github.com/conan-io/conan-center-index/pull/21263/files
The inclusion of these modules seem to work because I get:

-- Conan: Including build module from '/home/eric/.conan2/p/b/qtc895efca52644/p/lib/cmake/Qt6Qml/Qt6QmlMacros.cmake'
-- Conan: Including build module from '/home/eric/.conan2/p/b/qtc895efca52644/p/lib/cmake/Qt6Qml/Qt6QmlConfigExtras.cmake'

Unfortunately, I still get the same error as you do:

CMake Error at /home/eric/.conan2/p/b/qtc895efca52644/p/lib/cmake/Qt6Qml/Qt6QmlDeploySupport.cmake:51 (message):
  No QML imports information recorded for target myapp.  The target must be
  an executable and qt_add_qml_module() must have been called with it.  If
  using a CMake version lower than 3.19, ensure that the executable is
  manually finalized with qt_finalize_target().  Missing file:

      /home/eric/.conan2/p/b/tmp8281419767dda/b/.qt/deploy_qml_imports/myapp.cmake
Call Stack (most recent call first):
  deploy_MyApp.cmake:3 (qt_deploy_qml_imports)
  cmake_install.cmake:66 (include)



ERROR: tmp/1.2.3: Error in package() method, line 28
        cmake.install()
        ConanException: Error 1 while executing

I also tried to add include(/home/eric/.conan2/p/b/qtc895efca52644/p/lib/cmake/Qt6Qml/Qt6QmlConfigExtras.cmake) but it did not change the error. Maybe you have some idea ? Can you try this modified recipe ?

[ikoruk]

This seems to work for me! Weirdly qt didn't even need to recompile. Are you testing with qml sources? Could that be why it doesn't work for you?

[ericLemanissier]

woopsie, the failure I had was because I was building qt as static library. rebuilding now.

EDIT: yup, works for me too!