'SSis package' ERROR= "index was out of range

Hi Friends
I am getting This error while running BA
‘SSis package’ ERROR= “index was out of range must be non negative and less than the collection paramater”
I have tried to run SQL query
SELECT DISTINCT name
FROM msdb.dbo.sysdtspackages
WHERE name LIKE '% ’
but no result.
How to solve it…what is the possible reason.

I am using Nav 5 SP1 & sql server 2005
Thanks
Ashish