[Yandex Cloud documentation](../../../index.md) > [Yandex DataLens](../../index.md) > Troubleshooting > Empty document

# [Yandex DataLens] Empty document

`ERR.DS_API.SOURCE.FILE.NO_DATA`

You cannot use an empty file as a source in DataLens. Make sure to upload a file with data.

If the error persists, contact Yandex Cloud [support](https://center.yandex.cloud/support). Attach to your message the source file and a screenshot of the settings used by the connection returning the error.