error.txt

/usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/document/internals.rb:44:in `proc_set': undefined method `data' for nil:NilClass (NoMethodError)
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/font.rb:203:in `initialize'
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/font/afm.rb:30:in `initialize'
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/font.rb:192:in `new'
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/font.rb:192:in `load'
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/font.rb:125:in `find_font'
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/font.rb:33:in `font'
        from font_test.rb:4
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/document.rb:115:in `instance_eval'
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/document.rb:115:in `initialize'
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/document.rb:58:in `new'
        from /usr/local/lib/ruby/gems/1.8/gems/prawn-0.4.0/lib/prawn/document.rb:58:in `generate'
        from font_test.rb:3

font_on_empty_page.rb

require 'prawn'

Prawn::Document.generate('font_test.pdf', :skip_page_creation => true) do
  font "Helvetica", :style => :bold

  start_new_page
  
  text "This should be bold"
end

this is so weird. if you don't use :skip_page_creation, it works fine.

Prawn 0.4 is extremely old. If you're still experiencing this problem on newer versions of Prawn, please file a bug and we'll look into it.

Thanks!