Hello, we have different dataset, in which we upload .csv or .xlsx files in which from log comes out the error “[2025-02-17T14:22:29.363-0500] [Payara 6.2024. 6] [INFO] [] [edu.harvard.iq.dataverse.util.FileUtil] [tid: _ThreadID=87 _ThreadName=http-thread-pool::jk-connector(2)] [timeMillis: 1739820149363] [levelValue: 800] [[
FileName.csv is a file/extension name that Dataverse does not know. Consider adding it to the MimeTypeDetectionByFileName.properties file]]]
”, as this error can be solved. We also find that next to DRAFT VERSION, it generates a text “UNF:6:c1ibH+PvRoxetQ+3Yv7CLQ== [fileUNF]”
Hello, any considered answer for this error?
It's confusing. Are you able to upload these files to https://demo.dataverse.org so we can see how they look?
Last updated: Oct 30 2025 at 06:21 UTC