を実行する ruby filename.rb
と、シンWebサーバーが起動しますが、localhost:4567で(Sinatra)アプリケーションを表示しようとすると、このエラーメッセージが表示されます。グーグルで調べても何もわかりませんでした。誰かが私がこれを乗り越えるために何をするかもしれないか知っていますか?
gems/eventmachine-0.12.10/lib/em/connection.rb:39:in `block in new': undefined method `associate_callback_target' for #<Thin::Connection:0x00000100fc7500> (NoMethodError)
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/em/connection.rb:36:in `instance_eval'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/em/connection.rb:36:in `new'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/eventmachine.rb:1430:in `event_callback'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:815:in `block in eventable_read'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:812:in `times'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:812:in `eventable_read'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:369:in `block in crank_selectables'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:369:in `each'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:369:in `crank_selectables'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:324:in `block in run'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:318:in `loop'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:318:in `run'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/pr_eventmachine.rb:64:in `run_machine'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/eventmachine-0.12.10/lib/eventmachine.rb:256:in `run'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/thin-1.4.1/lib/thin/backends/base.rb:63:in `start'
from /Users/michaeljohnmitchell/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/thin-1.4.1/lib/thin/server.rb:159:in `start'
from /Users/mm/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/rack-1.4.1/lib/rack/handler/thin.rb:13:in `run'
from /Users/mm/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/sinatra-1.3.3/lib/sinatra/base.rb:1350:in `run!'
from /Users/mm/.rvm/gems/ruby-1.9.2-p290@rails3tutorial/gems/sinatra-1.3.3/lib/sinatra/main.rb:25:in `block in <module:Sinatra>'
このコードは、Rubyでのインターネットアプリケーションのクローン作成という本からのものです。それはそのデモアプリケーションのそれぞれで起こっています...
ルートコード
get '/' do haml :index end
post '/' do
uri = URI::parse(params[:original])
custom = params[:custom].empty? ? nil : params[:custom]
raise "Invalid URL" unless uri.kind_of? URI::HTTP or uri.kind_of? URI::HTTPS
@link = Link.shorten(params[:original], custom)
haml :index
end
['/info/:short_url', '/info/:short_url/:num_of_days', '/info/:short_url/:num_of_days/:map'].each do |path|
get path do
@link = Link.first(:identifier => params[:short_url])
raise 'This link is not defined yet' unless @link
@num_of_days = (params[:num_of_days] || 15).to_i
@count_days_bar = Visit.count_days_bar(params[:short_url], @num_of_days)
chart = Visit.count_country_chart(params[:short_url], params[:map] || 'world')
@count_country_map = chart[:map]
@count_country_bar = chart[:bar]
haml :info
end
end
get '/:short_url' do
link = Link.first(:identifier => params[:short_url])
link.visits << Visit.create(:ip => get_remote_ip(env))
link.save
redirect link.url.original, 301
end
error do haml :index end
def get_remote_ip(env)
if addr = env['HTTP_X_FORWARDED_FOR']
addr.split(',').first.strip
else
env['REMOTE_ADDR']
end
end