Team Server v17 Install Issue

We are getting the following error message when upgrading from Team Server v16 to v17:

ORA-25188: cannot drop/disable/defer the primary key constraint for index-organized tables or sorted hash cluster ORA-06512: at "SYS.DBMS_UTILITY", line 574 ORA-06512: at line 9 

Any advice as to how to resolve? Thanks!