I wanted to share my experience in case it helped a few others out there in the community.  In my case I didn't have a Spark gateway on the same node as HS2 (a mis-click on my part).  The issue was that the installer would not retry in a proper way (by my standards) even though I went back and fixed the role assignment.  All attempts to make the change result in the same error on the same step while trying to finish my cluster install.  I haven't disected the installtion but at somepoint prior to the 'final' steps it has already created the cluster layout and configuration in CM.  And this can not be changed through the install wizard.  I opened CM in another tab.  I could see my brand new cluster with all services and a big error icon.  I corrected my issue here, making sure the original assignment matched and with the Spark gateway on the HS2 node as well.  Then I went back to the other tab with the install wizard and hit 'Retry'. I proceeded and finished my install.  This is how you need to handle any errors that come up regarding the configuration and it has already been committed to the CM database. ... View more