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conan install zmqpp/4.2.0@ --profile=/home/conan/w/BuildSingleReference/6036/18135633-c787-4080-b61c-464ab7d224e5/profile.txt --build=zmqpp
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=clang
compiler.libcxx=libstdc++
compiler.version=10
os=Linux
os_build=Linux
[options]
zmqpp:shared=False
[build_requires]
[env]

zmqpp/4.2.0: Forced build from source
Installing package: zmqpp/4.2.0
Requirements
    libsodium/1.0.18 from 'conan-center' - Cache
    zeromq/4.3.3 from 'conan-center' - Cache
    zmqpp/4.2.0 from local cache - Cache
Packages
    libsodium/1.0.18:630635fddca4f9bd523c1d35f1e606fa6e00a6e0 - Missing
    zeromq/4.3.3:453b24a96311bcad051dd47d00e114d3f511818e - Missing
    zmqpp/4.2.0:05873fdb19f91279d4814119df36f3e444d9ede7 - Build

Installing (downloading, building) binaries...

ERROR: Missing binary: libsodium/1.0.18:630635fddca4f9bd523c1d35f1e606fa6e00a6e0
ERROR: Missing binary: zeromq/4.3.3:453b24a96311bcad051dd47d00e114d3f511818e
libsodium/1.0.18: WARN: Can't find a 'libsodium/1.0.18' package for the specified settings, options and dependencies:
- Settings: arch=x86_64, build_type=Debug, compiler=clang, compiler.version=10, os=Linux
- Options: PIE=False, fPIC=True, shared=False, use_soname=True
- Dependencies: 
- Requirements: 
- Package ID: 630635fddca4f9bd523c1d35f1e606fa6e00a6e0

ERROR: Missing prebuilt package for 'libsodium/1.0.18', 'zeromq/4.3.3'
Try to build from sources with '--build=libsodium --build=zeromq'
Use 'conan search <reference> --table table.html'
Or read 'http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'