Oracle Solution for Error ora-34001

ORA-34001: (MODCOMP14) Concat leaf dimension workspace object

already is used in a DIMENSION statement, either explicitly or as a leaf of another concat dimension.

What triggered the Error:

Either two concat dimensions which share a common leaf dimension, or a concat and one of its leaves where both specified in the DIMENSION statement(s).

What should we do to fix it:

Do not specify overlapping concat dimensions, or any leaves of specified concat dimensions.