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conan install ignition-math/6.7.0@ --profile=/home/conan/w/BuildSingleReference/1855/f3873599-891d-4b50-9099-24d6d9558d30/profile.txt --build=ignition-math
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=clang
compiler.libcxx=libc++
compiler.version=10
os=Linux
os_build=Linux
[options]
ignition-math:shared=True
[build_requires]
[env]

ignition-math/6.7.0: Forced build from source
Installing package: ignition-math/6.7.0
Requirements
    eigen/3.3.7 from 'conan-center' - Cache
    ignition-math/6.7.0 from local cache - Cache
Packages
    eigen/3.3.7:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Download
    ignition-math/6.7.0:e03e8518785bf2abd9889be96d46a970e6e18fec - Build
Build requirements
    ignition-cmake/2.5.0 from 'conan-center' - Cache
    pkgconf/1.7.3 from 'conan-center' - Cache
Build requirements packages
    ignition-cmake/2.5.0:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Download
    pkgconf/1.7.3:2b1e5ff9df96aaf5924c273e1368c632fcb32dd2 - Missing

Installing (downloading, building) binaries...

ERROR: Missing binary: pkgconf/1.7.3:2b1e5ff9df96aaf5924c273e1368c632fcb32dd2
pkgconf/1.7.3: WARN: Can't find a 'pkgconf/1.7.3' package for the specified settings, options and dependencies:
- Settings: arch=x86_64, build_type=Release, compiler=clang, compiler.version=10, os=Linux
- Options: fPIC=True, shared=False
- Dependencies: 
- Requirements: 
- Package ID: 2b1e5ff9df96aaf5924c273e1368c632fcb32dd2

ERROR: Missing prebuilt package for 'pkgconf/1.7.3'
Try to build from sources with '--build=pkgconf'
Use 'conan search <reference> --table table.html'
Or read 'http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'