LDAP complains about a $ENV setting

[<CZa...@wi...>]

Can someone shed some light on this error. Net::LDAP is
complaining about an environment variable.

"/d01/oracle" is not exported by the Net::LDAP::Constant module at
test_ldap.pl line 6
Can't continue after import errors at test_ldap.pl line 6
BEGIN failed--compilation aborted at test_ldap.pl line 6.

The "/d01/oracle" is an environment setting value for $ENV{ORACLE_BASE}.

Thanks