A.A.A.R. not showing buttons (SOLVED)

After the installation, if your AAAR is not showing Configure/Install/Use buttons, please update Pentaho with the latest “Community Graphics Generator” and “Community Dashboards Framework”. The solution is described here.

I have received few contacts on that problem so I think would be useful to share the solution one time for all. Thank you to jservajean and kossel for sharing the experience.