Something’s wrong with the CSV files. I’ve been using them for quite some time and all of the sudden the Hugo Server throws “ERROR unexpected data type [][]string in file books.csv” I never changed anything in my csv file, I never touched anything. Everything is as it should be. I am not even CALL…

It looks exactly like this: [image] (I couldn’t resist) The error was that the csv was in a /data/ folder. The moment I moved it to a /csv/ folder, it worked fine again. I never recall reading in the docs that csv files needed a csv file to work, but they do.

CSV: unexpected data type [][]string in file

support

maiki Split this topic March 12, 2019, 6:47pm 8

A post was split to a new topic: Questions about getCSV

Topic		Replies	Views
Inconsistencies in supported data formats support	7	475	August 10, 2019
Error message "failed to read data" from csv even it is working fine support	8	2925	April 4, 2018
WARN: Data not supported for extension 'csv' support	2	1544	March 28, 2016
Connection refused when using getCSV for files outside of `data` support	13	1110	December 10, 2021
I was reading this post https://discourse.gohugo.io/t/unmarshall-error/53124/1 and came across a similar issue that’s been hard to resolve support	1	28	January 20, 2025

CSV: unexpected data type [][]string in file

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