Oracle OLS LBACSYS错误

我正在学习Oracle的OLS（Oracle标签安全）功能，这是我的问题。
我执行了这些程序以启用OLS功能。我当前的用户是拥有sysdba特权的sys

EXEC LBACSYS.CONFIGURE_OLS;
EXEC LBACSYS.OLS_ENFORCEMENT.ENABLE_OLS;

然后我通过LBACSYS帐户登录以创建OLS策略，但它不起作用

CONN LBACSYS/LBACSYS;
BEGIN
SA_SYSDBA.CREATE_POLICY (
     policy_name      => 'emp_ols_pol',
     column_name      => 'ols_col',
     default_options  => 'read_control, update_control');
END;
/

错误消息

Error report -
ORA-65109: operation not allowed in CDB$ROOT
ORA-06512: at "LBACSYS.LBAC_LGSTNDBY_UTIL", line 100
ORA-06512: at "LBACSYS.LBAC_SYSDBA", line 80
ORA-06512: at "LBACSYS.LBAC_SYSDBA", line 138
ORA-06512: at "LBACSYS.LBAC_LGSTNDBY_UTIL", line 76
ORA-06512: at "LBACSYS.SA_SYSDBA", line 16
ORA-06512: at line 2
65109. 00000 -  "operation not allowed in CDB$ROOT"
*Cause:    An operation was attempted that is not supported in the Container
           Database root.
*Action:   Switch to a pluggable database to perform the operation.

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请帮帮我，非常感谢你们

这个问题与编程问题无关。我想最好是继续问下去