EXP PLS-00201: identifier 'SYS.DBMS_DEFER_IMPORT_INTERNAL' must be declared

导出报如下错误：
连接到: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
已导出 ZHS16GBK 字符集和 AL16UTF16 NCHAR 字符集即将导出整个数据库...
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. 即将导出 SYSTEM 的表通过常规路径...
. . 正在导出表                     DEF$_AQCALL
EXP-00008: 遇到 ORACLE 错误 6550
ORA-06550: line 1, column 18:
PLS-00201: identifier 'SYS.DBMS_DEFER_IMPORT_INTERNAL' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1204
ORA-06512: at "SYS.DBMS_SQL", line 323
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 97
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 126
ORA-06512: at line 1
. . 正在导出表                    DEF$_AQERROR
EXP-00008: 遇到 ORACLE 错误 6510
ORA-06510: PL/SQL: unhandled user-defined exception
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 50
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 126
ORA-06512: at line 1
. . 正在导出表                   DEF$_CALLDEST
EXP-00008: 遇到 ORACLE 错误 6550
ORA-06550: line 1, column 18:
PLS-00201: identifier 'SYS.DBMS_DEFER_IMPORT_INTERNAL' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1204
ORA-06512: at "SYS.DBMS_SQL", line 323
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 97
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 126
ORA-06512: at line 1
. . 正在导出表                DEF$_DEFAULTDEST
EXP-00008: 遇到 ORACLE 错误 6510
ORA-06510: PL/SQL: unhandled user-defined exception
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 50
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 126
ORA-06512: at line 1
. . 正在导出表                DEF$_DESTINATION
EXP-00008: 遇到 ORACLE 错误 6550
ORA-06550: line 1, column 18:
PLS-00201: identifier 'SYS.DBMS_DEFER_IMPORT_INTERNAL' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1204
ORA-06512: at "SYS.DBMS_SQL", line 323
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 97
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 126
ORA-06512: at line 1
. . 正在导出表                      DEF$_ERROR
EXP-00008: 遇到 ORACLE 错误 6510
ORA-06510: PL/SQL: unhandled user-defined exception
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 50
ORA-06512: at "SYS.DBMS_EXPORT_EXTENSION", line 126
ORA-06512: at line 1    解决方法：GRANT EXECUTE ON SYS.DBMS_DEFER_IMPORT_INTERNAL TO user_doing_export;
GRANT EXECUTE ON SYS.DBMS_EXPORT_EXTENSION TO user_doing_export;