Sometimes you just have to get your hands dirty
Erb [ERB] Exception: No such file or directory – when spawning ‘pygmentize’ (in post) (from /var/local/prometheus/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/posix-spawn-0.3.15/lib/posix/spawn.rb:189:in `_pspawn’, /var/local/prometheus/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/posix-spawn-0.3.15/lib/posix/spawn.rb:189:in `pspawn’, /var/local/prometheus/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/posix-spawn-0.3.15/lib/posix/spawn.rb:162:in `spawn’)