Premature end of file using XML Schema

Error:

From within the map tool we can attach an xml message and click the play
button without a failure.

If we add the schema's and the map to a process flow we receive the
following error, there are no errors in the process flow list.

DataMapping Failed Error in execution for activity DataMapping:testDataMapping:100000880021
36639925879800058[Error in execution : Premature end of file.]

Cause:

Using an XML schema before the Data Mapping

Solution:

Since the XML schema is already contained within the Data Mapping, you can remove the XML Schema activity before the Data Mapping within the Process Flow Designer