Oracle Solution for Error ora-12017

ORA-12017: cannot alter primary key mview 'string' to a rowid mview

What triggered the Error:

An attempt was made to convert the primary key of a materialized view to a ROWID materialized view.

What should we do to fix it:

Conversion of a primary key materialized view to a ROWID materialized view is not supported. Create a new materialized view with ROWIDs or drop and recreate the materialized view with ROWIDs.