8014 - Write XML Error

[dhascup]

I have created just the shell of the XML without any data being populated from the files within the query.

What does this error mean:
[8014 - Write XML] An unexpected error occurred. (The expression syntax is invalid as it can only return a single value. )

[Support_Rick]

Please attach your Project XML and the Project Run Job Log in Debug Mode so we can be of further assistance.

Thanks!