********************************************************************************
conan install cpr/1.5.2@ --profile=/home/conan/w/BuildSingleReference/1554/73039cd5-7b13-47e1-8c0e-b39e9f037bff/profile.txt --build=cpr
********************************************************************************
Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=clang
compiler.libcxx=libstdc++
compiler.version=10
os=Linux
os_build=Linux
[options]
cpr:shared=False
[build_requires]
[env]

cpr/1.5.2: Forced build from source
Installing package: cpr/1.5.2
Requirements
    cpr/1.5.2 from 'conan-upstream' - Cache
    libcurl/7.69.1 from 'conan-center' - Cache
    openssl/1.1.1h from 'conan-center' - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    cpr/1.5.2:c7992df86d00a43764f3a7feef2ce67f9fb1da89 - Build
    libcurl/7.69.1:59b811a3d1d729441cad5ead682d989c0bedf55a - Missing
    openssl/1.1.1h:2b1e5ff9df96aaf5924c273e1368c632fcb32dd2 - Missing
    zlib/1.2.11:2b1e5ff9df96aaf5924c273e1368c632fcb32dd2 - Download

Installing (downloading, building) binaries...

ERROR: Missing binary: libcurl/7.69.1:59b811a3d1d729441cad5ead682d989c0bedf55a
ERROR: Missing binary: openssl/1.1.1h:2b1e5ff9df96aaf5924c273e1368c632fcb32dd2
openssl/1.1.1h: WARN: Can't find a 'openssl/1.1.1h' package for the specified settings, options and dependencies:
- Settings: arch=x86_64, build_type=Release, compiler=clang, compiler.version=10, 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: 2b1e5ff9df96aaf5924c273e1368c632fcb32dd2

ERROR: Missing prebuilt package for 'libcurl/7.69.1', 'openssl/1.1.1h'
Try to build from sources with '--build=libcurl --build=openssl'
Use 'conan search <reference> --table table.html'
Or read 'http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'