installation instructions for c++ compiler?

[Almenon]

C:\dev\misc\Algojammer\c_ext>python setup.py build install running build running build_ext building 'algorecord' extension error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools

The link 404's.

I googled it and everyone says to download the build tools for visual studio (a hefty ~5 gig download 🙁 )

But after installing it and relaunching cmd I still get the same error.

A guy in the issue here says you also need to put %VS140COMNTOOLS% in your environment variables:

set VS150COMNTOOLS="C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\Common7\Tools"

but that didn't work either. Neither did VS150COMNTOOLS

I'll restart my computer and report back. Maybe that will fix it?

[rboughani]

i have the same problem with python 3.7.1

[ChrisKnott]

I will look into this this weekend

[Almenon]

oh and I forgot to mention my system setup. Windows 10 python 3.6

[rboughani]

i have the same, i think that visual c++ 14.0.0 not existe, when i have changed python to 2.7.8, it want me to install visual c++ 9.0, the i have installed it using this link https://www.microsoft.com/en-us/download/details.aspx?id=44266

https://github.com/RasaHQ/rasa_core/issues/1302

[JoostJM]

Hi All,

The fix with the environment variables is to redirect python to your current installed version of visual studio. Depending on which python you're running, it looks for a specific version.

See here for more info on python and compilers on windows (including the mapping between python and visual studio version and downloads for standalone versions)