SAP Message RSDD503 - First activate the recording of BW statistics for InfoCube &1

Diagnosis
Could not propose aggregates for InfoCube &V1&, as you have notactivated the recording process for BW statistics (OLAP) when queriesare executed for this InfoCube &V1&.

System Response
Cannot add new, proposed aggregates.

Procedure
Activate the recording of BW statistics (OLAP) for InfoCube &V1&.
To do this, choose Tools -> BW Statistics for InfoCubes inthe DataWarehousing Workbench. You arrive at the dialog box BWStatistics: Entry Mode.
Then execute at least one query.