Cognos Cube not allowed to update

Cognos Cube / mdc file not allowed to updated.

Problem: Window job fail to updated cube automatically and cube manual update fail.
Cause : Some body opened with .mdc file so that and playing with Power Play studio, so you can not update cube till that time .mdc file close - in network location.

Solution: Please close .mdc file and try to update cube after.

Thanks.