Issue in Receiver communication channel

I'm working on the File to File scenario where transferring the data from source text file to target text file using FTP.

Receiver CC :

In the receiver communication channel, I'm getting this error even the parameter, fieldSeparator / fieldFixedLengths is available.

Conversion initialization failed: com.sap.engine.interfaces.messaging.api.exception.MessagingException: java.lang.Exception: java.lang.Exception: Error(s) in XML conversion parameters found:

Parameter 'Row.fieldFixedLengths' or 'Row.fieldSeparator' is missing

Please help me to fix this issue