I’m trying to upload a dataset to the hub. My dataset consists of an test set only, there’s no training set. However, when I try to specify a split name other than “train” in the dataset card (e.g. “test”), I get the error “The dataset viewer is not available for this split.”: [Screenshot 2025-09-…

Dataset viewer doesn't work if split != "train"

John6666 September 26, 2025, 10:36pm 2

The YAML section at the top of README.md serves as the configuration file, so configuring it there might make it work.

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