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conan install openh264/1.7.0@ --build=openh264 --profile=C:\J\w\BuildSingleReference@3/29874/492f8026-42a0-438d-a80b-454baed9dbca/profile.txt
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=Visual Studio
compiler.runtime=MTd
compiler.version=14
os=Windows
os_build=Windows
[options]
openh264:shared=False
[build_requires]
[env]

openh264/1.7.0: Forced build from source
Installing package: openh264/1.7.0
Requirements
    openh264/1.7.0 from local cache - Cache
Packages
    openh264/1.7.0:f27dcd2d5e453cb01f9324a959461903ce8116a0 - Build
Build requirements
    msys2/cci.latest from 'conan-center' - Cache
    nasm/2.15.05 from 'conan-center' - Cache
Build requirements packages
    msys2/cci.latest:eee3fba89db6d777329de604625af8c30d46f080 - Cache
    nasm/2.15.05:01edd76db8e16db9b38c3cca44ec466a9444c388 - Cache

Installing (downloading, building) binaries...
msys2/cci.latest: Already installed!
msys2/cci.latest: Creating MSYS_ROOT env var : C:\J\w\BuildSingleReference@3/s\c57f89\1\bin\msys64
msys2/cci.latest: Creating MSYS_BIN env var : C:\J\w\BuildSingleReference@3/s\c57f89\1\bin\msys64\usr\bin
msys2/cci.latest: Appending PATH env var with : C:\J\w\BuildSingleReference@3/s\c57f89\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
nasm/2.15.05: Already installed!
nasm/2.15.05: Appending PATH environment variable: C:\J\w\BuildSingleReference@3\.conan\data\nasm\2.15.05\_\_\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
openh264/1.7.0: Applying build-requirement: nasm/2.15.05
openh264/1.7.0: Applying build-requirement: msys2/cci.latest
openh264/1.7.0: Copying sources to build folder
openh264/1.7.0: Building your package in C:\J\w\BuildSingleReference@3\.conan\data\openh264\1.7.0\_\_\build\f27dcd2d5e453cb01f9324a959461903ce8116a0
openh264/1.7.0: 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
openh264/1.7.0: Calling build()

----Running------
> make openh264.lib ARCH=x86_64 PREFIX=/c/j/w/buildsinglereference@3/.conan/data/openh264/1.7.0/_/_/package/f27dcd2d5e453cb01f9324a959461903ce8116a0 CPPFLAGS= "CXXFLAGS=-Zi -Ob0 -Od -MTd -nologo -MTd" "CFLAGS=-Zi -Ob0 -Od -MTd -nologo -MTd" LDFLAGS=-link LIBS= OS=msvc -j16
-----------------
cl -Zi -Ob0 -Od -MTd -nologo -MTd -Zi -Ob0 -Od -MTd -nologo -MTd -I./codec/api/svc -I./codec/common/inc -Icodec/common/inc  -I./codec/encoder/core/inc -I./codec/encoder/plus/inc -I./codec/processing/interface -c -Focodec/encoder/core/src/au_set.obj codec/encoder/core/src/au_set.cpp
cl -Zi -Ob0 -Od -MTd -nologo -MTd -Zi -Ob0 -Od -MTd -nologo -MTd -I./codec/api/svc -I./codec/common/inc -Icodec/common/inc  -I./codec/encoder/core/inc -I./codec/encoder/plus/inc -I./codec/processing/interface -c -Focodec/encoder/core/src/deblocking.obj codec/encoder/core/src/deblocking.cpp
cl -Zi -Ob0 -Od -MTd -nologo -MTd -Zi -Ob0 -Od -MTd -nologo -MTd -I./codec/api/svc -I./codec/common/inc -Icodec/common/inc  -I./codec/encoder/core/inc -I./codec/encoder/plus/inc -I./codec/processing/interface -c -Focodec/encoder/core/src/decode_mb_aux.obj codec/encoder/core/src/decode_mb_aux.cpp
au_set.cpp
cl -Zi -Ob0 -Od -MTd -nologo -MTd -Zi -Ob0 -Od -MTd -nologo -MTd -I./codec/api/svc -I./codec/common/inc -Icodec/common/inc  -I./codec/encoder/core/inc -I./codec/encoder/plus/inc -I./codec/processing/interface -c -Focodec/encoder/core/src/encode_mb_aux.obj codec/encoder/core/src/encode_mb_aux.cpp
deblocking.cpp
cl -Zi -Ob0 -Od -MTd -nologo -MTd -Zi -Ob0 -Od -MTd -nologo -MTd -I./codec/api/svc -I./codec/common/inc -Icodec/common/inc  -I./codec/encoder/core/inc -I./codec/encoder/plus/inc -I./codec/processing/interface -c -Focodec/encoder/core/src/encoder.obj codec/encoder/core/src/encoder.cpp
codec/encoder/core/src/deblocking.cpp: fatal error C1041: cannot open program database 'C:\J\w\BuildSingleReference@3\.conan\data\openh264\1.7.0\_\_\build\f27dcd2d5e453cb01f9324a959461903ce8116a0\source_subfolder\vc140.pdb'; if multiple CL.EXE write to the same .PDB file, please use /FS
decode_mb_aux.cpp
codec/encoder/core/src/decode_mb_aux.cpp: fatal error C1041: cannot open program database 'C:\J\w\BuildSingleReference@3\.conan\data\openh264\1.7.0\_\_\build\f27dcd2d5e453cb01f9324a959461903ce8116a0\source_subfolder\vc140.pdb'; if multiple CL.EXE write to the same .PDB file, please use /FS
encode_mb_aux.cpp
codec/encoder/core/src/encode_mb_aux.cpp: fatal error C1041: cannot open program database 'C:\J\w\BuildSingleReference@3\.conan\data\openh264\1.7.0\_\_\build\f27dcd2d5e453cb01f9324a959461903ce8116a0\source_subfolder\vc140.pdb'; if multiple CL.EXE write to the same .PDB file, please use /FS
encoder.cpp
codec/encoder/core/src/encoder.cpp: fatal error C1041: cannot open program database 'C:\J\w\BuildSingleReference@3\.conan\data\openh264\1.7.0\_\_\build\f27dcd2d5e453cb01f9324a959461903ce8116a0\source_subfolder\vc140.pdb'; if multiple CL.EXE write to the same .PDB file, please use /FS
openh264/1.7.0: 
nasm/2.15.05: WARN: Lib folder doesn't exist, can't collect libraries: C:\J\w\BuildSingleReference@3\.conan\data\nasm\2.15.05\_\_\package\01edd76db8e16db9b38c3cca44ec466a9444c388\lib
openh264/1.7.0: WARN: Build folder is dirty, removing it: C:\J\w\BuildSingleReference@3\.conan\data\openh264\1.7.0\_\_\build\f27dcd2d5e453cb01f9324a959461903ce8116a0
make: *** [codec/encoder/targets.mk:85: codec/encoder/core/src/deblocking.obj] Error 2
make: *** Waiting for unfinished jobs....
make: *** [codec/encoder/targets.mk:85: codec/encoder/core/src/decode_mb_aux.obj] Error 2
make: *** [codec/encoder/targets.mk:85: codec/encoder/core/src/encode_mb_aux.obj] Error 2
make: *** [codec/encoder/targets.mk:85: codec/encoder/core/src/encoder.obj] Error 2
openh264/1.7.0: ERROR: Package 'f27dcd2d5e453cb01f9324a959461903ce8116a0' build failed
openh264/1.7.0: WARN: Build folder C:\J\w\BuildSingleReference@3\.conan\data\openh264\1.7.0\_\_\build\f27dcd2d5e453cb01f9324a959461903ce8116a0
ERROR: openh264/1.7.0: Error in build() method, line 151
	env_build.make(args=self._make_args, target=self._library_filename)
	ConanException: Error 2 while executing make openh264.lib ARCH=x86_64 PREFIX=/c/j/w/buildsinglereference@3/.conan/data/openh264/1.7.0/_/_/package/f27dcd2d5e453cb01f9324a959461903ce8116a0 CPPFLAGS= "CXXFLAGS=-Zi -Ob0 -Od -MTd -nologo -MTd" "CFLAGS=-Zi -Ob0 -Od -MTd -nologo -MTd" LDFLAGS=-link LIBS= OS=msvc -j16