MFPLI00155S "variable-name" cannot be allocated because the SET option or implied SET option does not reference a POINTER or OFFSET variable.

Either a POINTER or OFFSET variable must be specified in the SET option in the declaration of a BASED variable or in the SET option on the ALLOCATE or LOCATE statement.
Resolution:
Supply a POINTER or OFFSET variable in the SET option in the declaration of "variable-name" or on the ALLOCATE or LOCATE statement.
Module:
INTRP2.PL1