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conan install ignition-math/6.7.0@ --profile=/home/conan/w/BuildSingleReference/1855/3560be2d-60f6-42ff-83cc-70b48149317c/profile.txt --build=ignition-math
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=clang
compiler.libcxx=libstdc++
compiler.version=11
os=Linux
os_build=Linux
[options]
ignition-math:shared=False
[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:d2f20457f43460c7bf4ceab033da3aa3ff69a0a4 - 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/1.7.3:05441c20e7e7a68951563eb6a1ae544f71dd7263 - Missing

Installing (downloading, building) binaries...

ERROR: Missing binary: pkgconf/1.7.3:05441c20e7e7a68951563eb6a1ae544f71dd7263
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=Debug, compiler=clang, compiler.version=11, os=Linux
- Options: fPIC=True, shared=False
- Dependencies: 
- Requirements: 
- Package ID: 05441c20e7e7a68951563eb6a1ae544f71dd7263

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'