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conan install libvpx/1.9.0@ --profile=C:\J\w\BuildSingleReference/4913/e1cbdd13-a265-44f2-b6a5-3dba458581b4/profile.txt --build=libvpx
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=Visual Studio
compiler.runtime=MT
compiler.version=15
os=Windows
os_build=Windows
[options]
libvpx:shared=False
[build_requires]
[env]

libvpx/1.9.0: Forced build from source
Installing package: libvpx/1.9.0
Requirements
    libvpx/1.9.0 from local cache - Cache
Packages
    libvpx/1.9.0:7932e88f7793aad690efa6be01864fbcb701f99e - Build
Build requirements
    msys2/20200517 from 'conan-center' - Cache
    yasm/1.3.0 from 'conan-center' - Cache
Build requirements packages
    msys2/20200517:3cbd862cb7a3ea47ed1220dc027f344262d5224f - Cache
    yasm/1.3.0:0a420ff5c47119e668867cdb51baff0eca1fdb68 - Cache

Installing (downloading, building) binaries...
msys2/20200517: Already installed!
msys2/20200517: Creating MSYS_ROOT env var : C:\J\w\BuildSingleReference/s\c5201c\1\bin
msys2/20200517: Creating MSYS_BIN env var : C:\J\w\BuildSingleReference/s\c5201c\1\bin\usr\bin
msys2/20200517: Appending PATH env var with : C:\J\w\BuildSingleReference/s\c5201c\1\bin\usr\bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
yasm/1.3.0: Already installed!
yasm/1.3.0: Appending PATH environment variable: C:\J\w\BuildSingleReference\.conan\data\yasm\1.3.0\_\_\package\0a420ff5c47119e668867cdb51baff0eca1fdb68\bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
libvpx/1.9.0: Applying build-requirement: yasm/1.3.0
libvpx/1.9.0: Applying build-requirement: msys2/20200517
libvpx/1.9.0: Copying sources to build folder
libvpx/1.9.0: Building your package in C:\J\w\BuildSingleReference\.conan\data\libvpx\1.9.0\_\_\build\7932e88f7793aad690efa6be01864fbcb701f99e
libvpx/1.9.0: Generator txt created conanbuildinfo.txt
[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
libvpx/1.9.0: Calling build()
libvpx/1.9.0: 
libvpx/1.9.0: WARN: Build folder is dirty, removing it: C:\J\w\BuildSingleReference\.conan\data\libvpx\1.9.0\_\_\build\7932e88f7793aad690efa6be01864fbcb701f99e
libvpx/1.9.0: ERROR: Package '7932e88f7793aad690efa6be01864fbcb701f99e' build failed
libvpx/1.9.0: WARN: Build folder C:\J\w\BuildSingleReference\.conan\data\libvpx\1.9.0\_\_\build\7932e88f7793aad690efa6be01864fbcb701f99e
ERROR: libvpx/1.9.0: Error in build() method, line 113
	tools.patch(**patch)
	FileNotFoundError: [Errno 2] No such file or directory: 'patches/msvc_conan_build.patch'