Fingerprint error in SFTP receiver adapter.

Hello guys,

I am working on a Java only stack in SAP PI 7.4 .I have an SFTP receiver adapter.I am getting an Fingerprint error while trying to write file to the SFTP server.

The error says:"Exception caught by adapter framework: com.jcraft.jsch.JSchException: Fingerprint invalid. Fingerprint is: 71:ef:53:9e:ea:d2:bc:27:1e:53:d4:cf:af:f8:a3:cd". However, I am using the correct server(as above) finger print in my Communication channel. The finger print also matches the one that Filezilla displays.

I went through the thread : http://scn.sap.com/thread/3578030 , which advises creating an private-key.

I have tried using both password and private-key based authentication , but I am getting the same error.

I am using variable substitution in the config, does it have anything to do with the error?

Thanks,

Shweta.