Cause: Configuring a ViewServer feature through Remote Configuration without also configuring Plumage
Consequence: The ViewServer will fail to start
Workaround (if any): Install the condor-plumage package, create the directory /var/lib/condor/ViewHist, or set POOL_HISTORY_DIR to the appropriate directory. The directory should be owned by condor.condor and be writeable by the condor user.
Result: Once one of the workarounds is applied, the ViewServer will start.