Error while installation of Phabricator


I am installing phabricator from
I installed it sucessfully and i have created subdomain for phabricator.But when I entered
in browser.It shows all the files saved in that folder.
Index of /

NameLast modifiedSizeDescription

arcanist/2015-12-12 11:05 -
codereview/2015-12-12 11:07 -
html/2015-12-11 09:18 -
libphutil/2015-12-12 11:05 -
phabricator/2015-12-12 11:06 -

Apache/2.4.7 (Ubuntu) Server at Port 80

Its not redirecting to Please Let me know about that.

Thank you in advance.

Your documentRoot may be wrong, recheck Apache configuration.

Thanx for reply…Should is it necessary to enable the newly created virtualhost entry using following command.
sudo a2ensite phabricator.conf

Actually,I am unable to enable the config file.
Please Let me know.