[package] paho-mqtt-c/1.3.5: cmake_find_package_multi issue during conan create

Tried using the latest paho-mqtt-c package here but targeting 1.3.5 of the library and during my conan create I am getting a bunch of cmake_find_package_multi errors that I don’t quite know what to make of them. Before the most recent additions of this feature here I was able to create the package fine. The same issues are also happening with the latest paho.mqtt.cpp package which also added this new feature.

Package and Environment Details (include every applicable attribute)

• Package Name/Version: paho-mqtt-c & paho-mqtt-cpp/latest
• Operating System+version: Windows
• Compiler+version: VS2017
• Conan version: conan 1.24.0
• Python version: Python 3.7.7
• cmake: 3.17.0

Conan profile (output of conan profile show default or conan profile show <profile> if custom profile is in use)

Configuration for profile vs-15-debug:

[settings]
os=Windows
os_build=Windows
arch=x86_64
arch_build=x86_64
compiler=Visual Studio
compiler.version=15
build_type=Debug
compiler.runtime=MDd
[options]
[build_requires]
[env]

Steps to reproduce (Include if Applicable)

conan create . k3p/stable -tf test_package -pr vs-15-debug --build missing

Logs (Include/Attach if Applicable)

find-package-multi-issue.txt

[SpaceIm]

Spot on brother, that seems to have fixed it for the paho.mqtt.c project at least now I will try again with the cpp one. Is there a way to perhaps enforce the minimum conan version on a recipe with some error message to upgrade similar to how cmake has a minimum version? Otherwise this is totally confusing. It would make sense to enforce some minimum conan version check on all recipes in here

Starting from conan 1.28, there is required_conan_version: https://github.com/conan-io/conan-center-index/blob/a79d9f7f0c2b61c3e137720a917313c717761720/recipes/any-lite/all/conanfile.py#L4

[keysight-daryl]

Closing this issue as I have managed to sort through all the required updates and other packages that were needed to get by. The short of the answer here is you need to be using conan 1.26 or better and you need to possibly update all requirement packages to also use this new mechanism of cmake_find_package_multi.