AX 2012 R2 Retail

Hi All

We have AX 2012 R2 with demodata and EP is Installed.In that we have installed RetailHQ,Retail POS,Synch Service,Real Time Service,Retail Store DB Utility,Retail SDK on the same system.After that when i open POS Client we are getting Error as Application Couldn’t be Initialised and System Error has Occured.I am new to Retail.So kinldy help me out in doing the necessary configuration

Thank you