C:\Python\Python38>pip install gmic Collecting gmic Using cached gmic-0.0.2.tar.gz (1.3 MB) Installing collected packages: gmic Running setup.py install for gmic ... error ERROR: Command errored out with exit status 1: command: 'c:\python\python38\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\paulhart\\AppData\\Local\\Temp\\pip-install-b7la86i9\\gmic\\setup.py'"'"'; __file__='"'"'C:\\Users\\paulhart\\AppData\\Local\\Temp\\pip-install-b7la86i9\\gmic\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\paulhart\AppData\Local\Temp\pip-record-uaamv2ib\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\python\python38\Include\gmic' cwd: C:\Users\paulhart\AppData\Local\Temp\pip-install-b7la86i9\gmic\ Complete output (18 lines): running install running build running build_py file gmic.py (for module gmic) not found file gmic.py (for module gmic) not found running build_ext building 'gmic' extension creating build creating build\temp.win-amd64-3.8 creating build\temp.win-amd64-3.8\Release creating build\temp.win-amd64-3.8\Release\src creating build\temp.win-amd64-3.8\Release\src\gmic creating build\temp.win-amd64-3.8\Release\src\gmic\src C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Dgmic_build -Dcimg_use_png -Dcimg_date="" -Dcimg_time="" -Dgmic_is_parallel -Dcimg_use_zlib -Dcimg_display=1 -I. -Isrc/gmic/src -Ic:\python\python38\include -Ic:\python\python38\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt" /EHsc /Tpgmicpy.cpp /Fobuild\temp.win-amd64-3.8\Release\gmicpy.obj -std=c++11 cl : Command line warning D9002 : ignoring unknown option '-std=c++11' gmicpy.cpp C:\Users\paulhart\AppData\Local\Temp\pip-install-b7la86i9\gmic\src\gmic\src\./CImg.h(386): fatal error C1083: Cannot open include file: 'X11/Xlib.h': No such file or directory error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.24.28314\\bin\\HostX86\\x64\\cl.exe' failed with exit status 2 ---------------------------------------- ERROR: Command errored out with exit status 1: 'c:\python\python38\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\paulhart\\AppData\\Local\\Temp\\pip-install-b7la86i9\\gmic\\setup.py'"'"'; __file__='"'"'C:\\Users\\paulhart\\AppData\\Local\\Temp\\pip-install-b7la86i9\\gmic\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\paulhart\AppData\Local\Temp\pip-record-uaamv2ib\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\python\python38\Include\gmic' Check the logs for full command output. C:\Python\Python38>