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conan install ffmpeg/4.4@#1303422693aecf88511dc5496f82e567 --build=ffmpeg -pr C:\J\w\BuildSingleReference@6/82189/2977d1e8-532a-4605-aae8-5fd0a766a83d/profile_windows_16_mt_vs_release_64.ffmpeg-shared-True.txt
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Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=Visual Studio
compiler.runtime=MT
compiler.version=16
os=Windows
[options]
ffmpeg:shared=True
[build_requires]
[env]

ffmpeg/4.4: Forced build from source
Installing package: ffmpeg/4.4
Requirements
    brotli/1.0.9 from 'conan-center' - Cache
    bzip2/1.0.8 from 'conan-center' - Cache
    ffmpeg/4.4 from local cache - Cache
    freetype/2.11.1 from 'conan-center' - Cache
    libfdk_aac/2.0.2 from 'conan-center' - Cache
    libiconv/1.16 from 'conan-center' - Cache
    libmp3lame/3.100 from 'conan-center' - Cache
    libpng/1.6.37 from 'conan-center' - Cache
    libvpx/1.11.0 from 'conan-center' - Cache
    libwebp/1.2.2 from 'conan-center' - Cache
    libx264/20191217 from 'conan-center' - Cache
    libx265/3.4 from 'conan-center' - Cache
    ogg/1.3.4 from 'conan-center' - Cache
    openh264/2.1.1 from 'conan-center' - Cache
    openjpeg/2.4.0 from 'conan-center' - Cache
    openssl/1.1.1m from 'conan-center' - Cache
    opus/1.3.1 from 'conan-center' - Cache
    vorbis/1.3.7 from 'conan-center' - Cache
    xz_utils/5.2.5 from 'conan-center' - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    brotli/1.0.9:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    bzip2/1.0.8:8feb221a01dcb7f80d1d66f9676d4e44215f5e08 - Download
    ffmpeg/4.4:f4d5242fa21d0b597a22715c9dddaaffbdb36867 - Build
    freetype/2.11.1:f7cfa0039d91d91f3635d7741b30770c314ce224 - Download
    libfdk_aac/2.0.2:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    libiconv/1.16:a79a557254fabcb77849dd623fed97c9c5ab7651 - Missing
    libmp3lame/3.100:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    libpng/1.6.37:c91944d5ebaf4e45db68ccd31554454862bd945c - Download
    libvpx/1.11.0:b89ba0e4d277f15044ec1b64db692f45132a0e00 - Download
    libwebp/1.2.2:0e078e9b96515615dd28756a9a322f884d7cc9f9 - Download
    libx264/20191217:d71fb572b9459fd49e7701a3a14b583c8e727284 - Download
    libx265/3.4:a7c3f85f6da6a2208e0f213a88074116684e8608 - Download
    ogg/1.3.4:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    openh264/2.1.1:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    openjpeg/2.4.0:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    openssl/1.1.1m:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    opus/1.3.1:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    vorbis/1.3.7:f6c32ca8ce9a20d2fc19743ecc9a51626d8bead3 - Download
    xz_utils/5.2.5:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    zlib/1.2.11:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
Build requirements
    msys2/cci.latest from 'conan-center' - Cache
    pkgconf/1.7.4 from 'conan-center' - Cache
    yasm/1.3.0 from 'conan-center' - Cache
Build requirements packages
    msys2/cci.latest:eee3fba89db6d777329de604625af8c30d46f080 - Download
    pkgconf/1.7.4:a79a557254fabcb77849dd623fed97c9c5ab7651 - Download
    yasm/1.3.0:0a420ff5c47119e668867cdb51baff0eca1fdb68 - Download

Installing (downloading, building) binaries...

ERROR: Missing binary: libiconv/1.16:a79a557254fabcb77849dd623fed97c9c5ab7651
libiconv/1.16: WARN: Can't find a 'libiconv/1.16' package for the specified settings, options and dependencies:
- Settings: arch=x86_64, build_type=Release, compiler=Visual Studio, compiler.runtime=MT, compiler.version=16, os=Windows
- Options: shared=False
- Dependencies: 
- Requirements: 
- Package ID: a79a557254fabcb77849dd623fed97c9c5ab7651

ERROR: Missing prebuilt package for 'libiconv/1.16'
Use 'conan search libiconv/1.16 --table=table.html -r=remote' and open the table.html file to see available packages
Or try to build locally from sources with '--build=libiconv'

More Info at 'https://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'