I tryed to install x-pack on Kibana 6.4
Kibana now contains X-Pack by default, there is no longer any need to install it as it is already present.
but the Reporting Button as this(https://www.elastic.co/guide/en/kibana/current/pdf-layout-modes.html) 
my User Interface for Visualize is like this no reporting button 
Also the reporting from dashboard 