Hi all,
I have been running into the same issue with Arc Online where I try to import from file and upload my CSV but it shows the error message "An error occurred while creating features. (Duplicate field names are not allowed. ())" This has been occurring even when:
1. I make sure my headings don't have spaces (instead, they would be filled with "_").
2. And I have ensured that there are no duplicate field names.
Is there alternate way to upload my CSV so I can have my point data on my map?
Thank you in advance.