db_parse returned -1

["M.C.Shao" <ShaoMingchao97@mails.tsinghua.edu.cn>]

hi,all
During the startup of my i386-rtems IOC, when dbLoadDatabase("dbd/pcl733.dbd") is executed, within which pvt_yy_parse() is invoked,I get the following error message:
...
dbLoadDatabase("dbd/pcl733.dbd")
Error   Last token ")"
input line: device(mbbiDirect,CONSTANT,de
db_parse returned -1
dbLoadRecords("db/dbpcl733.db", "user=root")
Error   Last token ")"
input line:     field(DTYP, "PCL733")    
    in: file db/dbpcl733.db line 11

db_parse returned -1
iocInit()
...

I have added a device support for pcl733 defined as this: 
device(mbbiDirect,INST_IO,devMbbiDirectPcl733,"PCL733").
After compiled,it's placed in dbd/pcl733.dbd like this:
...
device(mbbiDirect,CONSTANT,devMbbiDirectSoftRaw,"Raw Soft Channel")
device(mbbiDirect,INST_IO,devMbbiDirectPcl733,"PCL733")
...

what's the possible reason? 
thanks,
--
Shao Mingchao
Engineering Physics Department
Tsinghua University
Beijing,100084,China
Tel:86-10-62784552