Ruby "no implicit conversion of Hash into String (TypeError)" BOM付きファイルを読み込んだ時に起きるエラー - rootjunの日記require 'open-uri' require 'nokogiri' UserAgent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36' File.open("scraping_hotels7.csv"){|f| f.each do |url| url.chomp! doc = Nokogiri::HTML(open(url,'User-Agent' => UserAgent)) puts doc sleep 1 end } /Users/user_name/.rbenv/versions/2.1.4/lib/ruby/2.1.0/open-uri.rb:36:in `initiali
