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32-bit CFFI extension build failure on Windows 10 64-bit #30

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anibali opened this issue Sep 12, 2021 · 8 comments
Closed

32-bit CFFI extension build failure on Windows 10 64-bit #30

anibali opened this issue Sep 12, 2021 · 8 comments
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@anibali
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anibali commented Sep 12, 2021 

C:\Users\silve>pip install webp
Collecting webp
  Using cached webp-0.1.2.tar.gz (11 kB)
Requirement already satisfied: cffi>=1.0.0 in c:\users\silve\appdata\local\programs\python\python38-32\lib\site-packages (from webp) (1.14.6)
Requirement already satisfied: Pillow>=4.0.0 in c:\users\silve\appdata\local\programs\python\python38-32\lib\site-packages (from webp) (8.3.2)
Requirement already satisfied: numpy>=1.0.0 in c:\users\silve\appdata\local\programs\python\python38-32\lib\site-packages (from webp) (1.21.2)
Requirement already satisfied: pycparser in c:\users\silve\appdata\local\programs\python\python38-32\lib\site-packages (from cffi>=1.0.0->webp) (2.20)
Building wheels for collected packages: webp
  Building wheel for webp (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: 'c:\users\silve\appdata\local\programs\python\python38-32\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-42g1k2k6\\webp_fb85ab40d19c4d06afd812d2782552ff\\setup.py'"'"'; __file__='"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-42g1k2k6\\webp_fb85ab40d19c4d06afd812d2782552ff\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\silve\AppData\Local\Temp\pip-wheel-24nhc3sd'
       cwd: C:\Users\silve\AppData\Local\Temp\pip-install-42g1k2k6\webp_fb85ab40d19c4d06afd812d2782552ff\
  Complete output (85 lines):
  Configuration:
  [settings]
  arch=x86_64
  arch_build=x86_64
  build_type=Release
  compiler=Visual Studio
  compiler.runtime=MD
  compiler.version=14
  os=Windows
  os_build=Windows
  [options]
  [build_requires]
  [env]

  conanfile.txt: Installing package
  Requirements
      libwebp/1.0.3 from 'conancenter' - Cache
  Packages
      libwebp/1.0.3:8353b55c00a74fef4c1485ae46daf301a093802c - Cache

  Installing (downloading, building) binaries...
  libwebp/1.0.3: Already installed!
  conanfile.txt: Generator json created conanbuildinfo.json
  conanfile.txt: Generator txt created conanbuildinfo.txt
  
  ...

build\lib.win32-3.8\_webp.pyd : fatal error LNK1120: 28 unresolved externals
  error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC\\Tools\\MSVC\\14.29.30133\\bin\\HostX86\\x86\\link.exe' failed with exit status 1120
  Error in atexit._run_exitfuncs:
  Traceback (most recent call last):
    File "C:\Users\silve\AppData\Roaming\Python\Python38\site-packages\colorama\ansitowin32.py", line 59, in closed
      return stream.closed
  ValueError: underlying buffer has been detached
  ----------------------------------------
  ERROR: Failed building wheel for webp
  Running setup.py clean for webp
Failed to build webp
Installing collected packages: webp
    Running setup.py install for webp ... error
    ERROR: Command errored out with exit status 1:


...


Complete output (85 lines):
    Configuration:
    [settings]
    arch=x86_64
    arch_build=x86_64
    build_type=Release
    compiler=Visual Studio
    compiler.runtime=MD
    compiler.version=14
    os=Windows
    os_build=Windows
    [options]
    [build_requires]
    [env]

    conanfile.txt: Installing package
    Requirements
        libwebp/1.0.3 from 'conancenter' - Cache
    Packages
        libwebp/1.0.3:8353b55c00a74fef4c1485ae46daf301a093802c - Cache

    Installing (downloading, building) binaries...
    libwebp/1.0.3: Already installed!
    conanfile.txt: Generator txt created conanbuildinfo.txt
    conanfile.txt: Generator json created conanbuildinfo.json
    conanfile.txt: Generated conaninfo.txt
    conanfile.txt: Generated graphinfo
    running install
    running build
    running build_py
    creating build
    creating build\lib.win32-3.8
    creating build\lib.win32-3.8\webp
    copying webp\__init__.py -> build\lib.win32-3.8\webp
    creating build\lib.win32-3.8\webp_build
    copying webp_build\builder.py -> build\lib.win32-3.8\webp_build
    copying webp_build\__init__.py -> build\lib.win32-3.8\webp_build
    copying webp_build\cdef.h -> build\lib.win32-3.8\webp_build
    copying webp_build\source.c -> build\lib.win32-3.8\webp_build
    running build_ext
    generating cffi module 'build\\temp.win32-3.8\\Release\\_webp.c'
    creating build\temp.win32-3.8
    creating build\temp.win32-3.8\Release
    building '_webp' extension
    creating build\temp.win32-3.8\Release\build
    creating build\temp.win32-3.8\Release\build\temp.win32-3.8
    creating build\temp.win32-3.8\Release\build\temp.win32-3.8\Release
    C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133


...


    _webp.obj : error LNK2001: unresolved external symbol _WebPPictureImportRGBA
    _webp.obj : error LNK2001: unresolved external symbol _WebPEncode
    _webp.obj : error LNK2001: unresolved external symbol _WebPInitDecoderConfigInternal
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderAdd
    build\lib.win32-3.8\_webp.pyd : fatal error LNK1120: 28 unresolved externals
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC\\Tools\\MSVC\\14.29.30133\\bin\\HostX86\\x86\\link.exe' failed with exit status 1120
    Error in atexit._run_exitfuncs:
    Traceback (most recent call last):
      File "C:\Users\silve\AppData\Roaming\Python\Python38\site-packages\colorama\ansitowin32.py", line 59, in closed
        return stream.closed
    ValueError: underlying buffer has been detached
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\silve\appdata\local\programs\python\python38-32\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-42g1k2k6\\webp_fb85ab40d19c4d06afd812d2782552ff\\setup.py'"'"'; __file__='"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-42g1k2k6\\webp_fb85ab40d19c4d06afd812d2782552ff\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\silve\AppData\Local\Temp\pip-record-niqhuezq\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\silve\appdata\local\programs\python\python38-32\Include\webp' Check the logs for full command output.

Originally posted by @FeraruSilviuMarian in #20 (comment)
@anibali anibali mentioned this issue Sep 12, 2021
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@anibali
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anibali commented Sep 12, 2021

@FeraruSilviuMarian Can you please post the full error output? It looks like you've cut out the most important part.

@FeraruSilviuMarian
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FeraruSilviuMarian commented Sep 13, 2021 •
edited by anibali
Loading 

C:\Users\silve>pip install webp
Collecting webp
  Using cached webp-0.1.2.tar.gz (11 kB)
Requirement already satisfied: cffi>=1.0.0 in c:\users\silve\appdata\local\programs\python\python38-32\lib\site-packages (from webp) (1.14.6)
Requirement already satisfied: Pillow>=4.0.0 in c:\users\silve\appdata\local\programs\python\python38-32\lib\site-packages (from webp) (8.3.2)
Requirement already satisfied: numpy>=1.0.0 in c:\users\silve\appdata\local\programs\python\python38-32\lib\site-packages (from webp) (1.21.2)
Requirement already satisfied: pycparser in c:\users\silve\appdata\local\programs\python\python38-32\lib\site-packages (from cffi>=1.0.0->webp) (2.20)
Building wheels for collected packages: webp
  Building wheel for webp (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: 'c:\users\silve\appdata\local\programs\python\python38-32\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-ylv4yu5n\\webp_7fcce4286c634139b34968c038d0f03f\\setup.py'"'"'; __file__='"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-ylv4yu5n\\webp_7fcce4286c634139b34968c038d0f03f\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\silve\AppData\Local\Temp\pip-wheel-1grpxpb1'
       cwd: C:\Users\silve\AppData\Local\Temp\pip-install-ylv4yu5n\webp_7fcce4286c634139b34968c038d0f03f\
  Complete output (85 lines):
  Configuration:
  [settings]
  arch=x86_64
  arch_build=x86_64
  build_type=Release
  compiler=Visual Studio
  compiler.runtime=MD
  compiler.version=14
  os=Windows
  os_build=Windows
  [options]
  [build_requires]
  [env]

  conanfile.txt: Installing package
  Requirements
      libwebp/1.0.3 from 'conancenter' - Cache
  Packages
      libwebp/1.0.3:8353b55c00a74fef4c1485ae46daf301a093802c - Cache

  Installing (downloading, building) binaries...
  libwebp/1.0.3: Already installed!
  conanfile.txt: Generator txt created conanbuildinfo.txt
  conanfile.txt: Generator json created conanbuildinfo.json
  conanfile.txt: Generated conaninfo.txt
  conanfile.txt: Generated graphinfo
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build\lib.win32-3.8
  creating build\lib.win32-3.8\webp
  copying webp\__init__.py -> build\lib.win32-3.8\webp
  creating build\lib.win32-3.8\webp_build
  copying webp_build\builder.py -> build\lib.win32-3.8\webp_build
  copying webp_build\__init__.py -> build\lib.win32-3.8\webp_build
  copying webp_build\cdef.h -> build\lib.win32-3.8\webp_build
  copying webp_build\source.c -> build\lib.win32-3.8\webp_build
  running build_ext
  generating cffi module 'build\\temp.win32-3.8\\Release\\_webp.c'
  creating build\temp.win32-3.8
  creating build\temp.win32-3.8\Release
  building '_webp' extension
  creating build\temp.win32-3.8\Release\build
  creating build\temp.win32-3.8\Release\build\temp.win32-3.8
  creating build\temp.win32-3.8\Release\build\temp.win32-3.8\Release
  C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\bin\HostX86\x86\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\include -Ic:\users\silve\appdata\local\programs\python\python38-32\include -Ic:\users\silve\appdata\local\programs\python\python38-32\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\include" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\cppwinrt" /Tcbuild\temp.win32-3.8\Release\_webp.c /Fobuild\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.obj
  _webp.c
  C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\bin\HostX86\x86\link.exe /nologo /INCREMENTAL:NO /LTCG /DLL /MANIFEST:EMBED,ID=2 /MANIFESTUAC:NO /LIBPATH:c:\users\silve\appdata\local\programs\python\python38-32\libs /LIBPATH:c:\users\silve\appdata\local\programs\python\python38-32\PCbuild\win32 "/LIBPATH:C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\lib\x86" "/LIBPATH:C:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\lib\um\x86" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\ucrt\x86" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\um\x86" /EXPORT:PyInit__webp build\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.obj C:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\lib\webpdecoder.lib C:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\lib\webpdemux.lib C:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\lib\webpmux.lib C:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\lib\webp.lib /OUT:build\lib.win32-3.8\_webp.pyd /IMPLIB:build\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.lib
     Creating library build\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.lib and object build\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.exp
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderAssemble
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderHasMoreFrames
  _webp.obj : error LNK2001: unresolved external symbol _WebPPictureInitInternal
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderGetNext
  _webp.obj : error LNK2001: unresolved external symbol _WebPValidateConfig
  _webp.obj : error LNK2001: unresolved external symbol _WebPMemoryWrite
  _webp.obj : error LNK2001: unresolved external symbol _WebPMemoryWriterClear
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderOptionsInitInternal
  _webp.obj : error LNK2001: unresolved external symbol _WebPConfigInitInternal
  _webp.obj : error LNK2001: unresolved external symbol _WebPFree
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderNewInternal
  _webp.obj : error LNK2001: unresolved external symbol _WebPFreeDecBuffer
  _webp.obj : error LNK2001: unresolved external symbol _WebPDecode
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderGetInfo
  _webp.obj : error LNK2001: unresolved external symbol _WebPGetFeaturesInternal
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderReset
  _webp.obj : error LNK2001: unresolved external symbol _WebPPictureImportRGB
  _webp.obj : error LNK2001: unresolved external symbol _WebPPictureFree
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderNewInternal
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderDelete
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderOptionsInitInternal
  _webp.obj : error LNK2001: unresolved external symbol _WebPMemoryWriterInit
  _webp.obj : error LNK2001: unresolved external symbol _WebPPictureAlloc
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderDelete
  _webp.obj : error LNK2001: unresolved external symbol _WebPPictureImportRGBA
  _webp.obj : error LNK2001: unresolved external symbol _WebPEncode
  _webp.obj : error LNK2001: unresolved external symbol _WebPInitDecoderConfigInternal
  _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderAdd
  build\lib.win32-3.8\_webp.pyd : fatal error LNK1120: 28 unresolved externals
  error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC\\Tools\\MSVC\\14.29.30133\\bin\\HostX86\\x86\\link.exe' failed with exit status 1120
  Error in atexit._run_exitfuncs:
  Traceback (most recent call last):
    File "C:\Users\silve\AppData\Roaming\Python\Python38\site-packages\colorama\ansitowin32.py", line 59, in closed
      return stream.closed
  ValueError: underlying buffer has been detached
  ----------------------------------------
  ERROR: Failed building wheel for webp
  Running setup.py clean for webp
Failed to build webp
Installing collected packages: webp
    Running setup.py install for webp ... error
    ERROR: Command errored out with exit status 1:
     command: 'c:\users\silve\appdata\local\programs\python\python38-32\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-ylv4yu5n\\webp_7fcce4286c634139b34968c038d0f03f\\setup.py'"'"'; __file__='"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-ylv4yu5n\\webp_7fcce4286c634139b34968c038d0f03f\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\silve\AppData\Local\Temp\pip-record-84jlb461\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\silve\appdata\local\programs\python\python38-32\Include\webp'
         cwd: C:\Users\silve\AppData\Local\Temp\pip-install-ylv4yu5n\webp_7fcce4286c634139b34968c038d0f03f\
    Complete output (85 lines):
    Configuration:
    [settings]
    arch=x86_64
    arch_build=x86_64
    build_type=Release
    compiler=Visual Studio
    compiler.runtime=MD
    compiler.version=14
    os=Windows
    os_build=Windows
    [options]
    [build_requires]
    [env]

    conanfile.txt: Installing package
    Requirements
        libwebp/1.0.3 from 'conancenter' - Cache
    Packages
        libwebp/1.0.3:8353b55c00a74fef4c1485ae46daf301a093802c - Cache

    Installing (downloading, building) binaries...
    libwebp/1.0.3: Already installed!
    conanfile.txt: Generator txt created conanbuildinfo.txt
    conanfile.txt: Generator json created conanbuildinfo.json
    conanfile.txt: Generated conaninfo.txt
    conanfile.txt: Generated graphinfo
    running install
    running build
    running build_py
    creating build
    creating build\lib.win32-3.8
    creating build\lib.win32-3.8\webp
    copying webp\__init__.py -> build\lib.win32-3.8\webp
    creating build\lib.win32-3.8\webp_build
    copying webp_build\builder.py -> build\lib.win32-3.8\webp_build
    copying webp_build\__init__.py -> build\lib.win32-3.8\webp_build
    copying webp_build\cdef.h -> build\lib.win32-3.8\webp_build
    copying webp_build\source.c -> build\lib.win32-3.8\webp_build
    running build_ext
    generating cffi module 'build\\temp.win32-3.8\\Release\\_webp.c'
    creating build\temp.win32-3.8
    creating build\temp.win32-3.8\Release
    building '_webp' extension
    creating build\temp.win32-3.8\Release\build
    creating build\temp.win32-3.8\Release\build\temp.win32-3.8
    creating build\temp.win32-3.8\Release\build\temp.win32-3.8\Release
    C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\bin\HostX86\x86\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\include -Ic:\users\silve\appdata\local\programs\python\python38-32\include -Ic:\users\silve\appdata\local\programs\python\python38-32\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\include" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.19041.0\cppwinrt" /Tcbuild\temp.win32-3.8\Release\_webp.c /Fobuild\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.obj
    _webp.c
    C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\bin\HostX86\x86\link.exe /nologo /INCREMENTAL:NO /LTCG /DLL /MANIFEST:EMBED,ID=2 /MANIFESTUAC:NO /LIBPATH:c:\users\silve\appdata\local\programs\python\python38-32\libs /LIBPATH:c:\users\silve\appdata\local\programs\python\python38-32\PCbuild\win32 "/LIBPATH:C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.29.30133\lib\x86" "/LIBPATH:C:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\lib\um\x86" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\ucrt\x86" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.19041.0\um\x86" /EXPORT:PyInit__webp build\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.obj C:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\lib\webpdecoder.lib C:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\lib\webpdemux.lib C:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\lib\webpmux.lib C:\Users\silve\.conan\data\libwebp\1.0.3\_\_\package\8353b55c00a74fef4c1485ae46daf301a093802c\lib\webp.lib /OUT:build\lib.win32-3.8\_webp.pyd /IMPLIB:build\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.lib
       Creating library build\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.lib and object build\temp.win32-3.8\Release\build\temp.win32-3.8\Release\_webp.exp
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderAssemble
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderHasMoreFrames
    _webp.obj : error LNK2001: unresolved external symbol _WebPPictureInitInternal
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderGetNext
    _webp.obj : error LNK2001: unresolved external symbol _WebPValidateConfig
    _webp.obj : error LNK2001: unresolved external symbol _WebPMemoryWrite
    _webp.obj : error LNK2001: unresolved external symbol _WebPMemoryWriterClear
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderOptionsInitInternal
    _webp.obj : error LNK2001: unresolved external symbol _WebPConfigInitInternal
    _webp.obj : error LNK2001: unresolved external symbol _WebPFree
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderNewInternal
    _webp.obj : error LNK2001: unresolved external symbol _WebPFreeDecBuffer
    _webp.obj : error LNK2001: unresolved external symbol _WebPDecode
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderGetInfo
    _webp.obj : error LNK2001: unresolved external symbol _WebPGetFeaturesInternal
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderReset
    _webp.obj : error LNK2001: unresolved external symbol _WebPPictureImportRGB
    _webp.obj : error LNK2001: unresolved external symbol _WebPPictureFree
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderNewInternal
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimDecoderDelete
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderOptionsInitInternal
    _webp.obj : error LNK2001: unresolved external symbol _WebPMemoryWriterInit
    _webp.obj : error LNK2001: unresolved external symbol _WebPPictureAlloc
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderDelete
    _webp.obj : error LNK2001: unresolved external symbol _WebPPictureImportRGBA
    _webp.obj : error LNK2001: unresolved external symbol _WebPEncode
    _webp.obj : error LNK2001: unresolved external symbol _WebPInitDecoderConfigInternal
    _webp.obj : error LNK2001: unresolved external symbol _WebPAnimEncoderAdd
    build\lib.win32-3.8\_webp.pyd : fatal error LNK1120: 28 unresolved externals
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC\\Tools\\MSVC\\14.29.30133\\bin\\HostX86\\x86\\link.exe' failed with exit status 1120
    Error in atexit._run_exitfuncs:
    Traceback (most recent call last):
      File "C:\Users\silve\AppData\Roaming\Python\Python38\site-packages\colorama\ansitowin32.py", line 59, in closed
        return stream.closed
    ValueError: underlying buffer has been detached
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\silve\appdata\local\programs\python\python38-32\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-ylv4yu5n\\webp_7fcce4286c634139b34968c038d0f03f\\setup.py'"'"'; __file__='"'"'C:\\Users\\silve\\AppData\\Local\\Temp\\pip-install-ylv4yu5n\\webp_7fcce4286c634139b34968c038d0f03f\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\silve\AppData\Local\Temp\pip-record-84jlb461\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\silve\appdata\local\programs\python\python38-32\Include\webp' Check the logs for full command output.

@anibali anibali changed the title Build error on Windows CFFI extension build failure on Windows 10 Sep 13, 2021
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anibali commented Sep 13, 2021

Are you on a 32-bit or 64-bit version of Windows 10?

@FeraruSilviuMarian
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FeraruSilviuMarian commented Sep 13, 2021 •
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64-bit operating system, x64-based processor
Windows 10 Pro

my python version is 32 bits, could that be the issue ?

@anibali
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anibali commented Sep 13, 2021

Yes, I think that might be the issue. I can see a strange blend of 32-bit and 64-bit stuff in the output you posted. The libraries pulled by Conan are 64-bit (to match your system), but then the extension is being compiled in 32-bit (to match your Python), and then they can't be linked.

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anibali commented Sep 13, 2021 •
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You can try the following:

  1. Clone this repo and open a terminal in the root of the project directory.
  2. Checkout my experimental new branch: git checkout python32_on_64
  3. Build 32-bit libwebp binaries using Conan: conan install --build=libwebp -s arch=x86 .
  4. Install pywebp: pip install -U .

@anibali anibali mentioned this issue Sep 13, 2021
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@FeraruSilviuMarian
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I've installed python 3.9.7 64 bit (AMD64) and I was able to install webp after pip installing wheel and some other modules that I had before, thank you for your help.

@anibali anibali changed the title CFFI extension build failure on Windows 10 32-bit CFFI extension build failure on Windows 10 64-bit Sep 13, 2021
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anibali commented Sep 13, 2021

Code has been added to detect when 32-bit Python is installed on an x64 host and configure Conan accordingly: #31

@anibali anibali closed this as completed Sep 13, 2021
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