Thanks for the workaround which was a great help as I got this error just today with CDH 5.12.x.
After adding the Anaconda parcel: https://repo.continuum.io/pkgs/misc/parcels/ , it didnt show up in the parcel list when Checking for New Parcels. There was a null pointer exception in cloudera-scm-server.log . Had to remove both http and https sqoop parcel urls after which the Anaconda parcel showed up.
I have reproduced this issue, not sure why it took so long to affect my installs. Removing the sqoop repo https://archive.cloudera.com/sqoop-connectors/parcels/latest/ is indeed the work around.
I have notified the correct Cloudera parties to look into and fix this issue.
> Are you saying that when you removed the SQOOP-CONNECTORS ( https://archive.cloudera.com/sqoop-connectors/parcels/latest ) URL from the parcels list you were able to see your CDH upgrade choice?
When I removed the SQOOP-CONNECTORS URL from the list of remote repositories I stopped getting the NPE and became able to install new parcels.