@pra_big Thanks for posting on Cloudera community.
The error indicating that the CSD is not compatible with the new CDSW version (CDSW1.6) as you have CSD compatible for CDH 5.14.
You need to remove old CDS file compatible to CDH5 and then download the new CSD for CDH6 from this document. Also please follow the doc to configure the CSD locations and then proceed with upgrade procedure.
https://docs.cloudera.com/documentation/data-science-workbench/1-6-x/topics/cdsw_upgrade_parcel.html...
Don't forget to mark this post as a solution if this resolves your issue. Cheers.
Cheers!
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