Solution : https://service.sap.com/sap/support/notes/780118 (SAP Service marketplace login required)
Key words : 
/>    </attribute_names>   </pricing_constants><ipc installation directory>\lib\properties\r3\pricingconstants, <ipc installation directory>\lib\properties\crm\pricingconstants, entry ref_currency -->      <attribute alias=, latest ipc patch, />    </attribute_names>  </pricing_constants>, manual file adjustments, attribute #local currency#, higher support packages, local currency reason, including support package 19
Related Notes : 
       
| 486061 | How to get patches for CRM Internet Pricing Configurator |