SEVERE: Password file may be missing or configured incorrectly. Oracle 10gr2

When i was configure oracle enterprise manager then received following error.

-bash-3.00$ emca -config dbcontrol db

STARTED EMCA at Sep 12, 2011 3:46:52 PM

EM Configuration Assistant, Version 10.2.0.5.0 Production

Copyright (c) 2003, 2009, Oracle.  All rights reserved.

Enter the following information:

Database SID: orcl

Listener port number: 1521

Password for SYS user:

Password for DBSNMP user:

Password for SYSMAN user:

Password for SYSMAN user: Email address for notifications (optional):

Outgoing Mail (SMTP) server for notifications (optional):

-----------------------------------------------------------------

You have specified the following settings

Database ORACLE_HOME ................ /db/app/oracle/Db_1

Local hostname ................ spioradev.dummy.local

Listener port number ................ 1521

Database SID ................ orcl

Email address for notifications ...............

Outgoing Mail (SMTP) server for notifications ...............

-----------------------------------------------------------------

Do you wish to continue? [yes(Y)/no(N)]: y

Sep 12, 2011 3:47:12 PM oracle.sysman.emcp.EMConfig perform

INFO: This operation is being logged at /db/app/oracle/Db_1/cfgtoollogs/emca/orcl/emca_2011-09-12_03-46-52-PM.log.

Sep 12, 2011 3:47:14 PM oracle.sysman.emcp.EMConfig perform

SEVERE: Password file may be missing or configured incorrectly.

Refer to the log file at /db/app/oracle/Db_1/cfgtoollogs/emca/orcl/emca_2011-09-12_03-46-52-PM.log for more details.

Could not complete the configuration. Refer to the log file at /db/app/oracle/Db_1/cfgtoollogs/emca/orcl/emca_2011-09-12_03-46-52-PM.log for more details.

Reason: password file is missing or incorrectly configured.

Password file located under $ORACLE_HOME /dbs directory

File name: orapw$ORACLE_SID

Solution: Recreate password file

-bash-3.00$ orapwd file=orapworcl entries=10

Enter password for SYS: ...enter sys password here...