********************************************************************************
conan install ffmpeg/4.2.1@ --build=ffmpeg --profile=C:\J\w\BuildSingleReference@6/34240/fc1b069e-f214-4e7b-a80d-628888a3bca0/profile.txt
********************************************************************************
Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=Visual Studio
compiler.runtime=MDd
compiler.version=15
os=Windows
os_build=Windows
[options]
ffmpeg:shared=False
[build_requires]
[env]

ffmpeg/4.2.1: Forced build from source
Installing package: ffmpeg/4.2.1
Requirements
    brotli/1.0.9 from 'conan-center' - Cache
    bzip2/1.0.8 from 'conan-center' - Cache
    ffmpeg/4.2.1 from local cache - Cache
    freetype/2.10.4 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/1.10.0 from 'conan-center' - Cache
    libwebp/1.2.0 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/1.1.1l 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/1.0.9:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    bzip2/1.0.8:5c382ca84120276840c8074ab1851697636fb8ae - Cache
    ffmpeg/4.2.1:b4583c382d3e47752c5451a08ec1e99ea3cd20d6 - Build
    freetype/2.10.4:2f64248b9c0673cf411b59674166e24769e8750d - Cache
    libfdk_aac/2.0.2:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    libiconv/1.16:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    libmp3lame/3.100:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    libpng/1.6.37:3fba5fd406f3301ca4b1bad061a539c0581a3dc7 - Cache
    libvpx/1.10.0:33937af7fc19938b86b100624d2920f4d10ee699 - Cache
    libwebp/1.2.0:cc3ca8804df71811388ba344bb754fcfc3a6d540 - Cache
    libx264/20191217:ffc6b726913e10c84fac535e690d768b347677de - Cache
    libx265/3.4:139aff067bc61171656469f6b75386a257ca53e5 - Cache
    ogg/1.3.4:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    openh264/2.1.1:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    openjpeg/2.4.0:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    openssl/1.1.1l:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    opus/1.3.1:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    vorbis/1.3.7:37440cf0a43406e667e2937b27518cbc81f39e2b - Cache
    xz_utils/5.2.5:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    zlib/1.2.11:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
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 - Cache
    pkgconf/1.7.4:8cf01e2f50fcd6b63525e70584df0326550364e1 - Cache
    yasm/1.3.0:01edd76db8e16db9b38c3cca44ec466a9444c388 - Cache

Installing (downloading, building) binaries...
brotli/1.0.9: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
bzip2/1.0.8: Already installed!
bzip2/1.0.8: Appending PATH environment variable: C:\J\w\BuildSingleReference@6\.conan\data\bzip2\1.0.8\_\_\package\5c382ca84120276840c8074ab1851697636fb8ae\bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libfdk_aac/2.0.2: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libiconv/1.16: Already installed!
libiconv/1.16: Appending PATH environment var: C:\J\w\BuildSingleReference@6\.conan\data\libiconv\1.16\_\_\package\8cf01e2f50fcd6b63525e70584df0326550364e1\bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libmp3lame/3.100: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libvpx/1.10.0: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libwebp/1.2.0: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libx264/20191217: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libx265/3.4: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
msys2/cci.latest: Already installed!
msys2/cci.latest: Creating MSYS_ROOT env var : C:\J\w\BuildSingleReference@6/s\53c3c6\1\bin\msys64
msys2/cci.latest: Creating MSYS_BIN env var : C:\J\w\BuildSingleReference@6/s\53c3c6\1\bin\msys64\usr\bin
msys2/cci.latest: Appending PATH env var with : C:\J\w\BuildSingleReference@6/s\53c3c6\1\bin\msys64\usr\bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
ogg/1.3.4: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
openh264/2.1.1: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
openjpeg/2.4.0: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
openssl/1.1.1l: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
opus/1.3.1: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
pkgconf/1.7.4: Already installed!
pkgconf/1.7.4: Appending PATH env var: C:\J\w\BuildSingleReference@6\.conan\data\pkgconf\1.7.4\_\_\package\8cf01e2f50fcd6b63525e70584df0326550364e1\bin
pkgconf/1.7.4: Setting PKG_CONFIG env var: C:/J/w/BuildSingleReference@6/.conan/data/pkgconf/1.7.4/_/_/package/8cf01e2f50fcd6b63525e70584df0326550364e1/bin/pkgconf.exe
pkgconf/1.7.4: Appending AUTOMAKE_CONAN_INCLUDES env var: /c/j/w/buildsinglereference@6/.conan/data/pkgconf/1.7.4/_/_/package/8cf01e2f50fcd6b63525e70584df0326550364e1/bin/aclocal
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
xz_utils/5.2.5: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
yasm/1.3.0: Already installed!
yasm/1.3.0: Appending PATH environment variable: C:\J\w\BuildSingleReference@6\.conan\data\yasm\1.3.0\_\_\package\01edd76db8e16db9b38c3cca44ec466a9444c388\bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
zlib/1.2.11: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libpng/1.6.37: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
vorbis/1.3.7: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
freetype/2.10.4: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
ffmpeg/4.2.1: Applying build-requirement: yasm/1.3.0
ffmpeg/4.2.1: Applying build-requirement: pkgconf/1.7.4
ffmpeg/4.2.1: Applying build-requirement: msys2/cci.latest
ffmpeg/4.2.1: Copying sources to build folder
ffmpeg/4.2.1: Building your package in C:\J\w\BuildSingleReference@6\.conan\data\ffmpeg\4.2.1\_\_\build\b4583c382d3e47752c5451a08ec1e99ea3cd20d6
ffmpeg/4.2.1: Generator pkg_config created yasm.pc
ffmpeg/4.2.1: Generator pkg_config created libpkgconf.pc
ffmpeg/4.2.1: Generator pkg_config created msys2.pc
ffmpeg/4.2.1: Generator pkg_config created liblzma.pc
ffmpeg/4.2.1: Generator pkg_config created libiconv.pc
ffmpeg/4.2.1: Generator pkg_config created freetype2.pc
ffmpeg/4.2.1: Generator pkg_config created libopenjp2.pc
ffmpeg/4.2.1: Generator pkg_config created openh264.pc
ffmpeg/4.2.1: Generator pkg_config created vorbis.pc
ffmpeg/4.2.1: Generator pkg_config created vorbisfile.pc
ffmpeg/4.2.1: Generator pkg_config created vorbisfile-alias.pc
ffmpeg/4.2.1: Generator pkg_config created vorbisenc.pc
ffmpeg/4.2.1: Generator pkg_config created vorbisenc-alias.pc
ffmpeg/4.2.1: Generator pkg_config created vorbis_full_package.pc
ffmpeg/4.2.1: Generator pkg_config created opus.pc
ffmpeg/4.2.1: Generator pkg_config created x264.pc
ffmpeg/4.2.1: Generator pkg_config created x265.pc
ffmpeg/4.2.1: Generator pkg_config created libvpx.pc
ffmpeg/4.2.1: Generator pkg_config created libmp3lame.pc
ffmpeg/4.2.1: Generator pkg_config created fdk-aac.pc
ffmpeg/4.2.1: Generator pkg_config created libwebp.pc
ffmpeg/4.2.1: Generator pkg_config created libwebpmux.pc
ffmpeg/4.2.1: Generator pkg_config created libwebpdemux.pc
ffmpeg/4.2.1: Generator pkg_config created libwebpdecoder.pc
ffmpeg/4.2.1: Generator pkg_config created libcrypto.pc
ffmpeg/4.2.1: Generator pkg_config created libssl.pc
ffmpeg/4.2.1: Generator pkg_config created openssl.pc
ffmpeg/4.2.1: Generator pkg_config created bzip2.pc
ffmpeg/4.2.1: Generator pkg_config created libpng.pc
ffmpeg/4.2.1: Generator pkg_config created libbrotlicommon.pc
ffmpeg/4.2.1: Generator pkg_config created libbrotlienc.pc
ffmpeg/4.2.1: Generator pkg_config created libbrotlidec.pc
ffmpeg/4.2.1: Generator pkg_config created brotli.pc
ffmpeg/4.2.1: Generator pkg_config created ogglib.pc
ffmpeg/4.2.1: Generator pkg_config created ogg.pc
ffmpeg/4.2.1: Generator pkg_config created zlib.pc
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
ffmpeg/4.2.1: Calling build()
**********************************************************************
** Visual Studio 2017 Developer Command Prompt v15.9.19
** Copyright (c) 2017 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64'
ffmpeg/4.2.1: 
yasm/1.3.0: WARN: Lib folder doesn't exist, can't collect libraries: C:\J\w\BuildSingleReference@6\.conan\data\yasm\1.3.0\_\_\package\01edd76db8e16db9b38c3cca44ec466a9444c388\lib
ffmpeg/4.2.1: WARN: Build folder is dirty, removing it: C:\J\w\BuildSingleReference@6\.conan\data\ffmpeg\4.2.1\_\_\build\b4583c382d3e47752c5451a08ec1e99ea3cd20d6
ffmpeg/4.2.1: ERROR: Package 'b4583c382d3e47752c5451a08ec1e99ea3cd20d6' build failed
ffmpeg/4.2.1: WARN: Build folder C:\J\w\BuildSingleReference@6\.conan\data\ffmpeg\4.2.1\_\_\build\b4583c382d3e47752c5451a08ec1e99ea3cd20d6
ERROR: ffmpeg/4.2.1: Error in build() method, line 325
	autotools = self._configure_autotools()
while calling '_configure_autotools', line 278
	args.append("--arch={}".format(self._target_arch))
while calling '_target_arch', line 190
	str(self.settings.arch)
	ConanException: 'compiler' parameter for 'get_gnu_triplet()' is not specified and needed for os=Windows