what's wrong with "lnd_stdio.nml doesn't exist"

[lixz@ieecas_cn]

The CCSM stopped wich log:
(shr_msg_chdir) file lnd_stdio.nml doesn't exist, cwd has *not* been changed
(shr_msg_chStdOut) file lnd_stdio.nml doesn't exist, unit 6 has *not* been changed
(shr_msg_chStdIn) file lnd_stdio.nml doesn't exist, unit 5 has *not* been changed
(cpl_comm_init) setting up communicators, name = lnd
===================================
t_setoption: option disabled: Usr Sys

please.