Upgrade 11i to R12.1.3 worker fails on jtfpfstart.sql

@/apps/dpupg/app/apps/apps_st/appl/jtf/12

hello,
Upgrade 11i to R12.1.3 worker fails on jtfpfstart.sql

Worker fails on jtfpfstart.sql.

The following error is in the workerlog:

sqlplus -s APPS/***** @/apps/dpupg/app/apps/apps_st/appl/jtf/12.0.0/patch/115/sql/jtfpfstart.sql &un_apps &un_jtf
           dbms_aqadm.drop_queue_table(queue_table=>JTF_PF_CONV_PKG.QTABLENAME, force=>true);
                                                    *
ERROR at line 23:
ORA-06550: line 23, column 47:
PLS-00905: object APPS.JTF_PF_CONV_PKG is invalid
ORA-06550: line 23, column 6:
PL/SQL: Statement ignored
ORA-06550: line 27, column 45:
PLS-00905: object APPS.JTF_PF_CONV_PKG is invalid
ORA-06550: line 27, column 2:
PL/SQL: Statement ignored
ORA-06550: line 28, column 38:
PLS-00905: object APPS.JTF_PF_CONV_PKG is invalid