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conan install poco/1.8.1@ --build=poco --profile=/home/conan/w/BuildSingleReference/21138/84f7bea3-8a6d-4f03-92ea-363c3a4bad1c/profile.txt
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=clang
compiler.libcxx=libstdc++
compiler.version=6.0
os=Linux
os_build=Linux
[options]
poco:shared=True
[build_requires]
[env]

poco/1.8.1: Forced build from source
Installing package: poco/1.8.1
Requirements
    bzip2/1.0.8 from 'conan-center' - Cache
    expat/2.4.1 from 'conan-center' - Cache
    openssl/1.1.1k from 'conan-center' - Cache
    pcre/8.44 from 'conan-center' - Cache
    poco/1.8.1 from local cache - Cache
    sqlite3/3.35.5 from 'conan-center' - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    bzip2/1.0.8:32a3ebaea46cf4225c2c64a37eec9853655b8066 - Download
    expat/2.4.1:6cd9b37c1c9f05d1fc63c1ee6b7df1eb25db1078 - Download
    openssl/1.1.1k:69992a588026a3e14cd49c40ed17369c46d8d3a5 - Download
    pcre/8.44:e7b555d4ee4f2de84213488af26cc7b6b6b5753d - Missing
    poco/1.8.1:80b9b277fb40d858c2627e1412e92b7a92cf514f - Build
    sqlite3/3.35.5:79d88ee320a517a6ce9a431e1651ad171216e4e8 - Download
    zlib/1.2.11:69992a588026a3e14cd49c40ed17369c46d8d3a5 - Download

Installing (downloading, building) binaries...

ERROR: Missing binary: pcre/8.44:e7b555d4ee4f2de84213488af26cc7b6b6b5753d
pcre/8.44: WARN: Can't find a 'pcre/8.44' package for the specified settings, options and dependencies:
- Settings: arch=x86_64, build_type=Release, compiler=clang, compiler.version=6.0, os=Linux
- Options: build_pcre_16=True, build_pcre_32=True, build_pcre_8=True, build_pcrecpp=False, build_pcregrep=True, fPIC=True, shared=False, with_bzip2=True, with_jit=False, with_stack_for_recursion=True, with_unicode_properties=False, with_utf=False, with_zlib=True, bzip2:build_executable=True, bzip2:fPIC=True, bzip2:shared=False, zlib:fPIC=True, zlib:minizip=deprecated, zlib:shared=False
- Dependencies: bzip2/1.0.8, zlib/1.2.11
- Requirements: bzip2/1.Y.Z, zlib/1.Y.Z
- Package ID: e7b555d4ee4f2de84213488af26cc7b6b6b5753d

ERROR: Missing prebuilt package for 'pcre/8.44'
Try to build from sources with '--build=pcre'
Use 'conan search <reference> --table table.html'
Or read 'http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'