Header not found in Data

Error:

I have a interface where I am getting input file from unix and doing mapping in adeptia and sending to external system. My process flow is throwing error at filetoxmlschema conversion (before mapping). How do I avoid this error.

Cause:

The  "Data Header Present" property is checked in your file schema when your file does not contain a data header

Solution:

Un-check the "Data Header Present" property in your file schema