BSSE for ECP Calculation

From: Ricardo Vivas-Reyes <rvivasre -AatT- vub.ac.be>
Subject: BSSE for ECP Calculation
Date: Wed, 5 Dec 2001 16:50:17 +0100 (MET)

 Dear CCL users,
 I am running a tin complex using Gaussian 98, that uses the LanL2DZ basis
 set for Sn and 6-31G* for all the other atoms in the complex. Now I am
 trying to run a BSSE calculation for this complex using the following
 input:
 #P B3LYP/Gen Massage Pseudo=Read
 -1 1
 Molecular specification
 Sn
 LanL2DZ
 ****
 C H
 ****
 Sn
 LanL2Dz
 Which always ends with an error. Can you point me to a possible solution?
 Thank you in advance,
 Best wishes
 Ricardo.