corn:can't read your crontab file. Resubmit it

minm_zhao

#cat /var/adm/cron/log
! *** cron started ***   pid = 20986 Tue Jul  4 13:29:27 EAT 2006
! unexpected pid returned 20987 (ignored) Tue Jul  4 13:29:27 EAT 2006
#crontab -l
0  0  *  *  1  /opt/hpservices/RemoteSupport/config/pruneIncidents.sh
#tail /var/mail/root
corn:can't read your crontab file. Resubmit it

上面是一些log信息。
我现在写的脚本无法自动运行，这是什么原因阿？