Oracle Solution for Error ora-34177

ORA-34177: (MXCHGDCL19) number

cannot be deleted because one or more partitioned variables instantiate it.

What triggered the Error:

User attempted to CHGDFN DELETE a partition template, but some partitioned variable had data in the partition specified for deletion.

What should we do to fix it:

Drop the partitions that are causing the problem, then retry.