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I try to add a dataset from a local folder but it throws the error:

 Oops: an unexpected error occured

If this happens again, please use Feedback to tell us more about what you were doing.

Handler processing failed; nested exception is java.lang.AssertionError, caused by: AssertionError: null
HTTP code: 500, type: org.springframework.web.util.NestedServletException




1 Answer

0 votes

Please open a support ticket at

Please attach a diagnostic of the DSS instance (Administration > Maintenance > Diagnostic tool) and send us the resulting file? Note that you need to be administrator of the DSS instance - else you'll need to ask your admin.

If the resulting file is too large for mail (> 15 MB), you can use a file transfer service like WeTransfer to get it to us
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