Error in report built on top of Analytical view

Hello All,

I am trying to build a report in WebI based on a Analytical view created in HANA studio. the universe(.UNX) is developed in IDT. While trying to run the report or do a data preview in IDT on the data foundation layer, I am getting the following error message:

" feature not supported: not allowed over OLAP VIEW : search without aggregation or grouping by expression other than view column"

Please advice.