Best Method to Find Out What Member is Missing?

Hi,

Version: BI 4.0 SP8.3 with Microsoft SQL Server 2012

When you receive the following warning message, what is the single best method to find out exactly what members are missing?:

Analysis edition for OLAP could not find one or more members in this analysis, possibly because the cube has been updated. The hierarchy containing these members has been removed to allow the analysis to be executed.

Thanks,

Michael