badgr server Install

[olfa salah]

Hi all,

I'am following this documentation: https://github.com/concentricsky/badgr-server  to install badgr server but i stacked in this step:

$ pip install -r requirements-dev.txt

The issue is :

"Failed building wheel for cryptography"

Command "/edx/app/edxapp/badgr/env/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-RpVdqZ/cryptography/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-8PTN50-record/install-record.txt --single-version-externally-managed --compile --install-headers /edx/app/edxapp/badgr/env/include/site/python2.7/cryptography" failed with error code 1 in /tmp/pip-build-RpVdqZ/cryptography/

Although i installed all package dependencies.

Any help please?
Thanks in advance

[Nate Otto]

Resolved via help channel he...@badgr.io