A small walkthrough in ‘clearing’ the ORA-13785 error. This might be in the alert log or when you run DBMS_SPM.REPORT_AUTO_EVOLVE_TASK without and object ID. It probably defaults with object ID ‘1’, which is the last run evolve task(?).
The ‘SYS_AUTO_SPM_EVOLVE_TASK’ ‘root object ID’ (I’m not sure if it is called like this) seemed missing, adding it and resetting and resuming SPM resolved the error. This is all done with trial and error, cross checking a working 12c database and a lot of common sence. BACKUP FIRST! It also includes ‘recreating’ the ‘root object ID’ for ‘SYS_AUTO_SQL_TUNING_TASK’ which I found also missing. Continue reading