I followed the install from git instructions and was able to get the server up and running. When I click 'upload output from tool', I land on the upload page, but get an error:
"uninitialized constant Dradis::Plugins::Nessus::Meta"
It appears that this error appears for whatever is the first uncommented plugin (in Gemfile.plugins). I've Googled for this, but haven't found anything relevant.