Impdp error:

Processing object type SCHEMA_EXPORT/MATERIALIZED_VIEW
ORA-31685: Object type  failed due to insufficient privileges. Failing sql is:
ORA-31685: Object type  failed due to insufficient privileges. Failing sql is:
ORA-31685: Object type  failed due to insufficient privileges. Failing sql is:
Job "SYS"."SYS_IMPORT_FULL_01" completed with 9 error(s) at 14:37:45

The reason is that there are materialized views in the exported objects, but the user does not have permission to create materialized views

After the user is authorized, delete the imported data and import it repeatedly to solve the problem

grant create materialized view to user2;