******************************************************************************** conan install paho-mqtt-cpp/1.0.1@ --profile=/home/conan/w/BuildSingleReference/2387/2e9a32b3-288c-4f5f-a2e9-225b98196daf/profile.txt --build=paho-mqtt-cpp ******************************************************************************** Configuration: [settings] arch=x86_64 arch_build=x86_64 build_type=Release compiler=clang compiler.libcxx=libc++ compiler.version=11 os=Linux os_build=Linux [options] paho-mqtt-cpp:shared=True [build_requires] [env] paho-mqtt-cpp/1.0.1: Forced build from source Installing package: paho-mqtt-cpp/1.0.1 Requirements openssl/1.1.1i from 'conan-center' - Cache paho-mqtt-c/1.3.8 from 'conan-center' - Cache paho-mqtt-cpp/1.0.1 from local cache - Cache Packages openssl/1.1.1i:d988447fa516eac7400b2f34e2d4b89e42b4b1a8 - Missing paho-mqtt-c/1.3.8:503ebd83882e0a092eb65051cf34e746777cbbd6 - Missing paho-mqtt-cpp/1.0.1:b9b2f42156b80e40f31fa605bedb38498c045bb8 - Build Installing (downloading, building) binaries... ERROR: Missing binary: openssl/1.1.1i:d988447fa516eac7400b2f34e2d4b89e42b4b1a8 ERROR: Missing binary: paho-mqtt-c/1.3.8:503ebd83882e0a092eb65051cf34e746777cbbd6 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=Release, compiler=clang, compiler.version=11, os=Linux - 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: d988447fa516eac7400b2f34e2d4b89e42b4b1a8 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 --table table.html' Or read 'http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'