While trying to install the module PyPortfolioOpt, it failed because the Ecos and scs modules failed to build. I fixed the issue with Ecos by getting visual studio build tools but scs still keeps failing. I'm using a conda environment with python 3.8 and I tried conda install but it couldn't find the package in the default channels. Here is the error message:
C:UsersFranklin Joe>pip install scs
Collecting scs
Using cached scs-2.1.2.tar.gz (3.5 MB)
Requirement already satisfied: numpy>=1.7 in c:programdataanaconda3libsite-packages (from scs) (1.19.2)
Requirement already satisfied: scipy>=0.13.2 in c:programdataanaconda3libsite-packages (from scs) (1.5.2)
Building wheels for collected packages: scs
Building wheel for scs (setup.py) ... error
ERROR: Command errored out with exit status 1:
command: 'C:ProgramDataAnaconda3python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\Franklin Joe\AppData\Local\Temp\pip-install-ifm96i5v\scs\setup.py'"'"'; __file__='"'"'C:\Users\Franklin Joe\AppData\Local\Temp\pip-install-ifm96i5v\scs\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'
'"'"', '"'"'
'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:UsersFranklin JoeAppDataLocalTemppip-wheel-z7f66io1'
cwd: C:UsersFranklin JoeAppDataLocalTemppip-install-ifm96i5vscs
Complete output (79 lines):
Namespace(blas64=False, extraverbose=False, float32=False, gpu=False, int32=False, scs=False)
running bdist_wheel
running build
running build_py
creating build
creating buildlib.win-amd64-3.8
creating buildlib.win-amd64-3.8scs
copying src\__init__.py -> buildlib.win-amd64-3.8scs
running build_ext
blas_mkl_info:
libraries = ['mkl_rt']
library_dirs = ['C:/ProgramData/Anaconda3\Library\lib']
define_macros = [('SCIPY_MKL_H', None), ('HAVE_CBLAS', None)]
include_dirs = ['C:/ProgramData/Anaconda3\Library\include']
blas_opt_info:
libraries = ['mkl_rt']
library_dirs = ['C:/ProgramData/Anaconda3\Library\lib']
define_macros = [('SCIPY_MKL_H', None), ('HAVE_CBLAS', None)]
include_dirs = ['C:/ProgramData/Anaconda3\Library\include']
lapack_mkl_info:
libraries = ['mkl_rt']
library_dirs = ['C:/ProgramData/Anaconda3\Library\lib']
define_macros = [('SCIPY_MKL_H', None), ('HAVE_CBLAS', None)]
include_dirs = ['C:/ProgramData/Anaconda3\Library\include']
lapack_opt_info:
libraries = ['mkl_rt']
library_dirs = ['C:/ProgramData/Anaconda3\Library\lib']
define_macros = [('SCIPY_MKL_H', None), ('HAVE_CBLAS', None)]
include_dirs = ['C:/ProgramData/Anaconda3\Library\include']
Could not locate executable g77
Could not locate executable f77
Could not locate executable ifort
Could not locate executable ifl
Could not locate executable f90
Could not locate executable DF
Could not locate executable efl
Could not locate executable gfortran
Could not locate executable f95
Could not locate executable g95
Could not locate executable efort
Could not locate executable efc
Could not locate executable flang
don't know how to compile Fortran code on platform 'nt'
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1914: UserWarning:
Optimized (vendor) Blas libraries are not found.
Falls back to netlib Blas library which has worse performance.
A better performance should be easily gained by switching
Blas library.
if self._calc_info(blas):
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1914: UserWarning:
Blas (http://www.netlib.org/blas/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [blas]) or by setting
the BLAS environment variable.
if self._calc_info(blas):
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1914: UserWarning:
Blas (http://www.netlib.org/blas/) sources not found.
Directories to search for the sources can be specified in the
numpy/distutils/site.cfg file (section [blas_src]) or by setting
the BLAS_SRC environment variable.
if self._calc_info(blas):
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1748: UserWarning:
Lapack (http://www.netlib.org/lapack/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [lapack]) or by setting
the LAPACK environment variable.
return getattr(self, '_calc_info_{}'.format(name))()
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1748: UserWarning:
Lapack (http://www.netlib.org/lapack/) sources not found.
Directories to search for the sources can be specified in the
numpy/distutils/site.cfg file (section [lapack_src]) or by setting
the LAPACK_SRC environment variable.
return getattr(self, '_calc_info_{}'.format(name))()
cl : Command line warning D9002 : ignoring unknown option '-O3'
scsmodule.c
c:programdataanaconda3includepyconfig.h(59): fatal error C1083: Cannot open include file: 'io.h': No such file or directory
error: Command "C:Program Files (x86)Microsoft Visual Studio2017BuildToolsVCToolsMSVC14.16.27023inHostX86x64cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DPYTHON -DCTRLC=1 -DDLONG=1 -DCOPYAMATRIX -Iscs/include -Iscs/linsys -Iscs/linsys/cpu/direct/ -Iscs/linsys/external/amd -Iscs/linsys/external/dqlql -IC:ProgramDataAnaconda3libsite-packages
umpycoreinclude -IC:ProgramDataAnaconda3include -IC:ProgramDataAnaconda3include -IC:Program Files (x86)Microsoft Visual Studio2017BuildToolsVCToolsMSVC14.16.27023include /Tcsrc/scsmodule.c /Fobuildemp.win-amd64-3.8Releasesrc/scsmodule.obj -O3" failed with exit status 2
{}
{}
----------------------------------------
ERROR: Failed building wheel for scs
Running setup.py clean for scs
Failed to build scs
Installing collected packages: scs
Running setup.py install for scs ... error
ERROR: Command errored out with exit status 1:
command: 'C:ProgramDataAnaconda3python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\Franklin Joe\AppData\Local\Temp\pip-install-ifm96i5v\scs\setup.py'"'"'; __file__='"'"'C:\Users\Franklin Joe\AppData\Local\Temp\pip-install-ifm96i5v\scs\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'
'"'"', '"'"'
'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:UsersFranklin JoeAppDataLocalTemppip-record-tqjx263cinstall-record.txt' --single-version-externally-managed --compile --install-headers 'C:ProgramDataAnaconda3Includescs'
cwd: C:UsersFranklin JoeAppDataLocalTemppip-install-ifm96i5vscs
Complete output (79 lines):
Namespace(blas64=False, extraverbose=False, float32=False, gpu=False, int32=False, scs=False)
running install
running build
running build_py
creating build
creating buildlib.win-amd64-3.8
creating buildlib.win-amd64-3.8scs
copying src\__init__.py -> buildlib.win-amd64-3.8scs
running build_ext
blas_mkl_info:
libraries = ['mkl_rt']
library_dirs = ['C:/ProgramData/Anaconda3\Library\lib']
define_macros = [('SCIPY_MKL_H', None), ('HAVE_CBLAS', None)]
include_dirs = ['C:/ProgramData/Anaconda3\Library\include']
blas_opt_info:
libraries = ['mkl_rt']
library_dirs = ['C:/ProgramData/Anaconda3\Library\lib']
define_macros = [('SCIPY_MKL_H', None), ('HAVE_CBLAS', None)]
include_dirs = ['C:/ProgramData/Anaconda3\Library\include']
lapack_mkl_info:
libraries = ['mkl_rt']
library_dirs = ['C:/ProgramData/Anaconda3\Library\lib']
define_macros = [('SCIPY_MKL_H', None), ('HAVE_CBLAS', None)]
include_dirs = ['C:/ProgramData/Anaconda3\Library\include']
lapack_opt_info:
libraries = ['mkl_rt']
library_dirs = ['C:/ProgramData/Anaconda3\Library\lib']
define_macros = [('SCIPY_MKL_H', None), ('HAVE_CBLAS', None)]
include_dirs = ['C:/ProgramData/Anaconda3\Library\include']
Could not locate executable g77
Could not locate executable f77
Could not locate executable ifort
Could not locate executable ifl
Could not locate executable f90
Could not locate executable DF
Could not locate executable efl
Could not locate executable gfortran
Could not locate executable f95
Could not locate executable g95
Could not locate executable efort
Could not locate executable efc
Could not locate executable flang
don't know how to compile Fortran code on platform 'nt'
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1914: UserWarning:
Optimized (vendor) Blas libraries are not found.
Falls back to netlib Blas library which has worse performance.
A better performance should be easily gained by switching
Blas library.
if self._calc_info(blas):
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1914: UserWarning:
Blas (http://www.netlib.org/blas/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [blas]) or by setting
the BLAS environment variable.
if self._calc_info(blas):
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1914: UserWarning:
Blas (http://www.netlib.org/blas/) sources not found.
Directories to search for the sources can be specified in the
numpy/distutils/site.cfg file (section [blas_src]) or by setting
the BLAS_SRC environment variable.
if self._calc_info(blas):
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1748: UserWarning:
Lapack (http://www.netlib.org/lapack/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [lapack]) or by setting
the LAPACK environment variable.
return getattr(self, '_calc_info_{}'.format(name))()
C:ProgramDataAnaconda3libsite-packages
umpydistutilssystem_info.py:1748: UserWarning:
Lapack (http://www.netlib.org/lapack/) sources not found.
Directories to search for the sources can be specified in the
numpy/distutils/site.cfg file (section [lapack_src]) or by setting
the LAPACK_SRC environment variable.
return getattr(self, '_calc_info_{}'.format(name))()
cl : Command line warning D9002 : ignoring unknown option '-O3'
scsmodule.c
c:programdataanaconda3includepyconfig.h(59): fatal error C1083: Cannot open include file: 'io.h': No such file or directory
error: Command "C:Program Files (x86)Microsoft Visual Studio2017BuildToolsVCToolsMSVC14.16.27023inHostX86x64cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -DPYTHON -DCTRLC=1 -DDLONG=1 -DCOPYAMATRIX -Iscs/include -Iscs/linsys -Iscs/linsys/cpu/direct/ -Iscs/linsys/external/amd -Iscs/linsys/external/dqlql -IC:ProgramDataAnaconda3libsite-packages
umpycoreinclude -IC:ProgramDataAnaconda3include -IC:ProgramDataAnaconda3include -IC:Program Files (x86)Microsoft Visual Studio2017BuildToolsVCToolsMSVC14.16.27023include /Tcsrc/scsmodule.c /Fobuildemp.win-amd64-3.8Releasesrc/scsmodule.obj -O3" failed with exit status 2
{}
{}
------------------------------
