Problems with TMS!



    Dear CCLers,
     I have been tring to obtain magnetic shielding constants to TMS with
 bellow Route Section:
 #T MP2=Semidirect/GEN NMR SCF=Direct Transformation=Semidirect
     I am using Ahlrich pTZV basis set but the Gaussian 98 stop, with
 error in the Link L906 and write:
 "Discarding MO integrals
  File extend in NtrExt1 Failed"
     Why this error if the job is Semidirect?
     Thanks for any Help!
     Best Regards!
     Sidney Ramos
     DQF - CCEN - UFPE