currency conversion problem in anlytic view

Hi

     I created a analytic view  in that created a calculated column in creation time of calculated column it is not taking the Exchange  type.

      give error Sytems tables for currency conversion is missing  in default schema .I am using sps6 .and for calculated columns  i used schema SAP_HANA_EPM_DEMO.And in that schema all tables tcurr,,tcuc,tcurf,tcurn,tcurt,tcurv,tcurw,tcurx is available.

    .Please help me.
   Thanks ...

    Amit