[one-users] Sunstsone Sinatra/Thin errors

[David Welch]

I am setting up an OpenNebula test environment on Ubuntu 15.04 running 
on VirtualBox. The CLI works fine (onevm list, etc. all return 
normally). However, the sunstone gui throws errors:

"""
NoMethodError - undefined method `as' for :id:Symbol:
     /usr/lib/one/ruby/acct/watch_client.rb:213:in `filter_pool'
[and many subsequent errors]

The gui itself runs but is of very limited functionality in this state 
(keeps throwing errors, most options do not work).

The version of Sinatra is v.1.4.6
Ruby is 2.1.5p273

Do I need to upgrade or downgrade some of the libraries?

thanks,
Dave