Notice! This page describes the nature of the error using a hypothetical example and not the erroneous data of the input test file. You should however be able to apply this information to your error case.
Error message description:
There are illegal characters in the field. For example '&', '<' or '>' Try removing illegal characters or encoding them correctly, for example:
& = &
< = <
> = >
Read more from XML specification: http://www.w3.org/TR/xml-c14n#ProcessingModel
Or from here: http://www.w3schools.com/xml/xml_syntax.asp (search the heade "Entity References")
Example:
The ampersand character in here is not allowed to be given in the XML but it should be given as entity &
Error message given by validator:
"xmlParseEntityRef: no name"