SAP Message AP2011 - Not possible to translate completely to the reporting currency &1

Diagnosis
You started an Investment Management report using report currency &V1&.
For at least one object (investment program position, appropriationrequest, or measure), the system tried to translate a budget, plan orassigned value in controlling area currency &V2& into the reportcurrency &V1&.
However, the system could not find an exchange rate (for translatingV2 in v1) in exchange rate type v4 belonging to the basisinvestment program for the key date for the translation (= first day ofthe approval year of the basis investment program).

System Response
Processing terminates.

Procedure
Check your Customizing settings.