KM not working after the successful migration

Hello All,

I've migrated the Portal system successfully from EP6 SP2 to NW04 SP15. I didn't have any error messages and the migration was smooth. Now after the KM redeployment (which is a postprocessing step), I'm getting an error message "Invalid RID: NO Repository Found". however i checked that Repository is there with all the right parameters. I've deleted Old CM System ID's and assigned the new system ID to all the scheduler tasks as well.

It's a FSDB repository which points to the local d: and all the permissions are correct. Now i really can't find what's wrong here as i have migrated my sandbox last week to the same level and everything worked fine.

Any ideas....

Vaib