Installing magenta fails due to rtmidi

Hi,

I’m running CentOS and am working with an anaconda Python 2.7 environment. I tried installing magenta via pip, but I get the following errors:

src/RtMidi.cpp:1101:28: fatal error: alsa/asoundlib.h: No such file or directory
   #include <alsa/asoundlib.h>
                              ^
  compilation terminated.

Failed to build python-rtmidi

Command "/home/davidg/anaconda2/envs/magenta/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-ZbHoid/python-rtmidi/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-Y0KfrZ-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-ZbHoid/python-rtmidi/

Happy to provide more information! Thanks for the help in advance.

[reido2012]

Make sure you have the dependencies installed Linux: ALSA, JACK OS X: CoreMIDI, JACK Windows: MultiMedia (MM)

This link has the name of the packages that you can download - http://python-rtmidi.readthedocs.io/en/latest/installation.html

The commands you’ll most likely need to use as stated above are: sudo apt-get install libasound-dev sudo apt-get install libjack-dev

[davidlecea]

I think you need to install the ALSA library development files first. In Debian / Ubuntu you could fix it with:

sudo apt-get install libasound2-dev

But you’ll need to find the equivalent command for the CentOS package manager.