Oracle Error ORA-30459: ‘string.string’ cannot be refreshed because the refresh method is NONE

Oracle Error Message

ORA-30459: ‘string.string’ cannot be refreshed because the refresh method is NONE

Reason for the Error

An attempt was made to refresh a summary whose refresh method is NONE

Solution

Summaries whose refresh method is NONE (NEVER REFRESH) cannot be refreshed. Alter the summary to change the default refresh method from NONE to some other value.