Problems installing Xibo 1.8 Alpha on Ubuntu 14.10

I am trying to setup a preview version of 1.8 Alpha on a Ubuntu 14.10 platform. When I go to URL on the server, I proceed successfully through all the prerequisite checking, but when I then click “next”, I receive the error:

“xibo/web/install/2 was not found on server”

Any suggestions or guidance on how to correct this? Thanks in advance for any suggestions

You may be running under an alias? (/xibo) - in which case you may need to adjust your rewrite rules: