This is the message I get when I check my efile status and click fix my return:
An XML document that represents a binary attachment must have a valid reference to an attached file.
Data in the return is missing or invalid and cannot be electronically filed at this time. If Form 7206(s) are in the return, review the form(s) for accuracy and errors. If the form(s) is attached in error delete it and resubmit the return for electronic filing. If necessary, make the appropriate change and re-submit this return electronically. Etc.
