<div dir="ltr">i have cloned fuel repo and follow <a href="https://docs.fuel-infra.org/fuel-dev/develop/env.html">https://docs.fuel-infra.org/fuel-dev/develop/env.html</a> steps : in section 5.7 building Documentaion . when i run command  " make html " it gives follow error. <br><br><div><br>(fuel-web-venv)pramesh@pramesh:~/Documents/fuel-web/docs$ make html<br>sphinx-build -b html -W -d _build/doctrees   . _build/html<br>Traceback (most recent call last):<br>  File "/usr/local/bin/sphinx-build", line 5, in <module><br>    from pkg_resources import load_entry_point<br>  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2749, in <module><br>    working_set = WorkingSet._build_master()<br>  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 446, in _build_master<br>    return cls._build_from_requirements(__requires__)<br>  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 459, in _build_from_requirements<br>    dists = ws.resolve(reqs, Environment())<br>  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 628, in resolve<br>    raise DistributionNotFound(req)<br>pkg_resources.DistributionNotFound: Sphinx==1.4b1<br>make: *** [html] Error 1<br><br></div></div>