oracle在exp导出时报错PLS-00201: identifier 'EXFSYS.DBMS_EXPFIL_DEPASEXP' must be declared

报错如下信息：

EXP-00008: ORACLE error 6550 encountered
ORA-06550: line 1, column 14:
PLS-00201: identifier 'EXFSYS.DBMS_EXPFIL_DEPASEXP' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
EXP-00083: The previous problem occurred when calling EXFSYS.DBMS_EXPFIL_DEPASEXP.system_info_exp

解决方法：

DELETE FROM exppkgact$ WHERE SCHEMA='EXFSYS';