identifier 'DBMS_CDC_PUBLISH.CREATE_CHANGE_SET' must be declared [closed]

I am using oracle 11g express edition and I am getting the below error when trying to create a change set.

Error report:

ORA-06550: line 2, column 3:PLS-00201: identifier 'DBMS_CDC_PUBLISH.CREATE_CHANGE_SET' must be declaredORA-06550: line 2, column 3:PL/SQL: Statement ignored06550. 00000 -  "line %s, column %s:\n%s"*Cause:    Usually a PL/SQL compilation error.*Action:

I know CDC is desupported in later versions of oracle but I think it is supported here.

Can anyone help please?

I've tried to explicitly grant permission to the SYSTEM user with

grant execute on DBMS_CDC_PUBLISH to SYSTEM;

But I get

ORA-04042: procedure, function, package, or package body does not exist