I have installed the statspack 8.1.7 and hit error when try to gather the statspack snapshot. The error message is as follows:
ERROR at line 1:
ORA-04068: existing state of packages has been discarded
ORA-04063: package body "SYS.DBMS_UTILITY" has errors
ORA-06508: PL/SQL: could not find program unit being called
ORA-06512: at "SYS.DBMS_SHARED_POOL", line 45
ORA-06512: at "SYS.DBMS_SHARED_POOL", line 53
ORA-06512: at "PERFSTAT.STATSPACK", line 1764
ORA-06512: at line 1

I am running oracle 8.1.6 on W2K. Pls help.