Error: Field 'LastName' is unexpected

Error message

Validation failed on [FILE_ID]:

Form: SchSC1120D[1] DirectorAndOfficerInfo[1]/PersonName[1]/LastName[1]
Requirement: Expecting FirstName
Error: Field 'LastName' is unexpected

Element Name: LastName
XPath: /ReturnState[1]/ReturnDataState[1]/SchSC1120D[1]/DirectorAndOfficerInfo[1]/PersonName[1]/LastName[1]
XML Fragment: 0
Field Key: 149,549,128,0,0,0,0,0,0
Error Code: c00ce014
Error Reason: Element '{http://www.irs.gov/efile}LastName' is unexpected according to content model of parent element '{http://www.irs.gov/efile}PersonName'.
Expecting: {http://www.irs.gov/efile}FirstName.

Solution

Go to
Organizer
States
South Carolina
Officer Information
[NAME]
.
Separate the officer's name out into the
First Name
,
Middle Name
, and
Last Name
fields.
If you're filing a combined return, repeat the separation process for officer names in the lower members.
Do a full recompute, then recreate the e-file.