table or view does not exist - SYS.DBMS_NETWORK_ACL_ADMIN

What am I missing?  I can't get this to work.

BEGIN
 DBMS_NETWORK_ACL_ADMIN.CREATE_ACL (
  acl          => 'utl_pkgs_connect.xml',
  description  => 'connect for UTL pkgs',
  2    principal    => 'ORACLE',
  is_grant     => TRUE,
  privilege    => 'connect');
END;
/

ORA-00600: internal error code, arguments: [kzxcInitLoadLocal-7], [942], [ORA-00942: table or view does not exist
], [], [], [], [], [], [], [], [], []
ORA-06512: at "SYS.DBMS_NETWORK_ACL_ADMIN", line 252
ORA-06512: at line 2