cmake find_package failed when use conanfile.py about conan HOT 1 OPEN

Hi @boboxxd

Thanks for your report.

I was trying to reproduce but I encountered a few issues:

• workflow package doesn't exist in ConanCenter
• handy package doesn't exist in ConanCenter
• libuuid doesn't work on Windows (you didn't report in which platform you are running, neither the Conan version)
• Missing project() in the CMakeLists.txt

I avoided those by commenting things out or modifying your CMakeLists.txt.

Then the main issue is that you are missing the CMakeDeps generator. Add to your generate():

    from conan.tools.cmake import CMakeToolchain, CMakeDeps, CMake, cmake_layout
    ...
    def generate(self):
        tc = CMakeToolchain(self)
        tc.generate()
        deps = CMakeDeps(self)
        deps.generate()

And then with something like conan build . you will see in the output:

-- Conan: Component target declared 'PahoMqttCpp::paho-mqttpp3-static'
-- Conan: Component target declared 'eclipse-paho-mqtt-c::paho-mqtt3as-static'
-- Conan: Component target declared 'OpenSSL::Crypto'
-- Conan: Component target declared 'OpenSSL::SSL'
-- Conan: Target declared 'openssl::openssl'
-- Conan: Target declared 'ZLIB::ZLIB'

which means it was found.

Please let me know if this helps.

from conan.