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conan install paho-mqtt-cpp/1.2.0@ --profile=/Users/jenkins/w/BuildSingleReference@4/3046/6d5bdcdd-a0f1-4e40-be36-124d68d8be91/profile.txt --build=paho-mqtt-cpp
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=apple-clang
compiler.libcxx=libc++
compiler.version=12.0
os=Macos
os_build=Macos
[options]
paho-mqtt-cpp:shared=True
[build_requires]
[env]

paho-mqtt-cpp/1.2.0: Forced build from source
Installing package: paho-mqtt-cpp/1.2.0
Requirements
    openssl/1.1.1i from 'conan-center' - Cache
    paho-mqtt-c/1.3.8 from 'conan-center' - Cache
    paho-mqtt-cpp/1.2.0 from local cache - Cache
Packages
    openssl/1.1.1i:d98fae1010d1fb9e7f79a1e8a72bbf129d8660a2 - Missing
    paho-mqtt-c/1.3.8:42fa9ac3b4a29a01f7230811616906eff2ca7393 - Missing
    paho-mqtt-cpp/1.2.0:1525af10cb3498ade6862066bce357adf3e81be2 - Build

Installing (downloading, building) binaries...

ERROR: Missing binary: openssl/1.1.1i:d98fae1010d1fb9e7f79a1e8a72bbf129d8660a2
ERROR: Missing binary: paho-mqtt-c/1.3.8:42fa9ac3b4a29a01f7230811616906eff2ca7393
openssl/1.1.1i: WARN: Can't find a 'openssl/1.1.1i' package for the specified settings, options and dependencies:
- Settings: arch=x86_64, build_type=Debug, compiler=apple-clang, compiler.version=12.0, os=Macos
- Options: 386=False, fPIC=True, no_aria=False, no_asm=False, no_async=False, no_bf=False, no_blake2=False, no_camellia=False, no_cast=False, no_chacha=False, no_cms=False, no_comp=False, no_ct=False, no_deprecated=False, no_des=False, no_dgram=False, no_dh=False, no_dsa=False, no_dso=False, no_engine=False, no_filenames=False, no_gost=False, no_hmac=False, no_idea=False, no_md4=False, no_md5=False, no_mdc2=False, no_ocsp=False, no_pinshared=False, no_rc2=False, no_rmd160=False, no_rsa=False, no_sha=False, no_sm2=False, no_sm3=False, no_sm4=False, no_srp=False, no_srtp=False, no_sse2=False, no_ssl=False, no_threads=False, no_ts=False, no_whirlpool=False, openssldir=None, shared=False
- Dependencies: 
- Requirements: 
- Package ID: d98fae1010d1fb9e7f79a1e8a72bbf129d8660a2

ERROR: Missing prebuilt package for 'openssl/1.1.1i', 'paho-mqtt-c/1.3.8'
Try to build from sources with '--build=openssl --build=paho-mqtt-c'
Use 'conan search <reference> --table table.html'
Or read 'http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'