I'm trying to Add a Field to shapefile that I create after running some processes during a modelbuilder run and I keep running into Error 000229: "Cannot Open File at.........location:". I've tried to put the file in the simplest path possible "C:\Folder1\<Filename>". I'm honestly not sure why I can't access the file at this location or any other location for that matter.
FYI, the field name is valid "Surface" and is a text field.
Any help is appreciated.