Data Mapping For ProIntralink to Windchill 10.1 F000 migration

Hi I am getting an error while running the command

ildataLoader Mapping

to get the menu required for downloading and doing the other necessary steps for migration of data.

The error which i am getting is as follows:

C:\ptc\ILMigration\bin>ildataloader.bat Mapping

20/08/2013 14:45:19 INFO  util.JMXRegistry                                  - MBean: Logger registered successfully.

20/08/2013 14:45:19 INFO  bin.ILDataloader                                  - Verifying Migrator BuildCode ....

20/08/2013 14:45:23 INFO  connection.ILConnection                           - Oracle optimizer_mode successfully set to 'choose'

20/08/2013 14:45:23 ERROR util.MigUtils                                     -

com.ptc.migration.util.MigrationException: Failed to retrieve MigrationSite with domainId:4163182493232253876 Cannot load mapping data.

Nested exception is: com.ptc.migration.util.MigrationException: Intralink does not have fileserver

i am able to connect to the database on the intralink side and also  tnsping to them.

Can anyone please suggest as to why i am getting the problem?

Thanks

Abhinav