Error: Add Field Failed: Cannot create a table with a duplicate column
When adding a field to an attribute table, the following error may occur:
"Failed to add the field to the table/feature class. Cannot create a table with a duplicate column."
A field in the attribute table already has the same name.
Solution or Workaround
Rename one of the duplicated fields or delete the old field.
Last Published: 5/5/2016
Article ID: 000006322