Deploying Sinatra app on Heroku giving errors

Question

Being new to Heroku, I'm having a lot of trouble deploying my simple Sinatra based application to Heroku. I've followed all the steps and the app gets deployed too. I've followed the instructions given here:

https://blog.heroku.com/archives/2009/3/5/32_deploy_merb_sinatra_or_any_rack_app_to_heroku

My config.ru is file is as follows:

require './sinatratest.rb'
run Sinatra::Application

My Gemfile is

source 'https://rubygems.org'
gem 'sinatra'

Sinatratest.rb is as follows:

require 'sinatra'
require './test.rb'

get '/'  do
    result = FooRunner.run!

     File.open('output.json','w') do |f|
        f.write result
     end

    content_type :text
    result
end

And test.rb includes the following gems:

require 'rubygems'
require 'nokogiri'
require 'open-uri'
require 'date'
require 'json'

My gut tells me that I should be including all the gems in the Gemfile but when I do my Gemfile looks like this,

source 'https://rubygems.org'
gem 'sinatra'
gem 'open-uri'
gem 'nokogiri'
gem 'json'
gem 'date'

and when I run bundle install , it gives me the following error:

$ bundle install
Fetching gem metadata from https://rubygems.org/.........
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Could not find gem 'date (>= 0) x86-mingw32' in the gems available on this
machine.

The rest of the code are the main calculations of the program so I've not included them here.

When I run the files on localhost:4567, the program runs perfectly.

On running the app in Heroku, I get the following errors in the log file(rather extensive, not sure if it's important):

$ heroku logs -t -a young-dusk-4185
←[36m2014-01-20T13:16:18.123135+00:00 heroku[api]:←[0m Enable Logplex by siddhar
thmantri1@gmail.com
←[36m2014-01-20T13:16:18.186772+00:00 heroku[api]:←[0m Release v2 created by sid
dharthmantri1@gmail.com
←[33m2014-01-20T13:16:34+00:00 heroku[slug-compiler]:←[0m Slug compilation start
ed
←[33m2014-01-20T13:18:50+00:00 heroku[slug-compiler]:←[0m Slug compilation start
ed
←[36m2014-01-20T13:19:05.690086+00:00 heroku[api]:←[0m Scale to web=1 by siddhar
thmantri1@gmail.com
←[36m2014-01-20T13:19:05.758285+00:00 heroku[api]:←[0m Deploy 12b370f by siddhar
thmantri1@gmail.com
←[36m2014-01-20T13:19:05.814824+00:00 heroku[api]:←[0m Release v3 created by sid
dharthmantri1@gmail.com
←[33m2014-01-20T13:19:06+00:00 heroku[slug-compiler]:←[0m Slug compilation finis
hed
←[32m2014-01-20T13:19:08.957680+00:00 heroku[web.1]:←[0m Starting process with c
ommand bundle exec rackup config.ru -p 34125←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:55:in initialize'
←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m from /app/config.ru:innew'
←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m from /app/config.ru:in <main>'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:49:ineval'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:49:in new_from_string'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:40:inparse_file'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:277:in build_app_and_options_from
_config'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:314:inwrapped_app'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:250:in start'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:141:instart'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/bin/rackup:4:in <top (required)>'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/bin/rackup:23:inload'
←[32m2014-01-20T13:19:11.065193+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/bin/rackup:23:in <main>'
←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m /app/test.rb:2:inrequire
': cannot load such file -- nokogiri (LoadError)
←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m from /app/sinatratest.rb
:2:in require'
←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:55:ininstance_eval'
←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m from /app/config.ru:1:in
block in <main>'
←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m from /app/test.rb:2:in'
←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m from /app/config.ru:1:in
require'
←[32m2014-01-20T13:19:11.064788+00:00 app[web.1]:←[0m from /app/sinatratest.rb
:2:in'
←[32m2014-01-20T13:19:11.065003+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:199:in app'
←[32m2014-01-20T13:19:12.370360+00:00 heroku[web.1]:←[0m Process exited with sta
tus 1
←[32m2014-01-20T13:19:12.381229+00:00 heroku[web.1]:←[0m State changed from cras
hed to starting
←[32m2014-01-20T13:19:12.380342+00:00 heroku[web.1]:←[0m State changed from star
ting to crashed
←[32m2014-01-20T13:19:14.369032+00:00 heroku[web.1]:←[0m Starting process with c
ommandbundle exec rackup config.ru -p 4039←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m from /app/test.rb:2:in'
←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m from /app/sinatratest.rb
:2:in require'
←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m from /app/sinatratest.rb
:2:in'
←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m from /app/config.ru:1:in
block in <main>'
←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m /app/test.rb:2:inrequire
': cannot load such file -- nokogiri (LoadError)
←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m from /app/config.ru:1:in
require'
←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:55:ininstance_eval'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:49:in new_from_string'
←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m from /app/config.ru:innew'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:40:in parse_file'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/bin/rackup:23:inload'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:199:in app'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/bin/rackup:4:in'
←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:55:in initialize'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/builder.rb:49:ineval'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:277:in build_app_and_options_from
_config'
←[32m2014-01-20T13:19:15.709187+00:00 app[web.1]:←[0m from /app/config.ru:in'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:250:in start'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:141:instart'
←[32m2014-01-20T13:19:15.709387+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:314:in wrapped_app'
←[32m2014-01-20T13:19:15.709549+00:00 app[web.1]:←[0m from /app/vendor/bundle/
ruby/2.0.0/bin/rackup:23:in'
←[32m2014-01-20T13:19:16.879149+00:00 heroku[web.1]:←[0m Process exited with sta
tus 1
←[32m2014-01-20T13:19:16.890707+00:00 heroku[web.1]:←[0m State changed from star
ting to crashed
←[35m2014-01-20T13:21:08.466196+00:00 heroku[router]:←[0m at=error code=H10 desc
="App crashed" method=GET path=/ host=young-dusk-4185.herokuapp.com request_id=1
ef27ceb-7ee2-47f4-9fb7-cbdcc8fab61c fwd="122.170.61.59" dyno= connect= service=
status=503 bytes=
←[35m2014-01-20T13:21:10.429453+00:00 heroku[router]:←[0m at=error code=H10 desc
="App crashed" method=GET path=/favicon.ico host=young-dusk-4185.herokuapp.com r
equest_id=5897225e-2ef0-4d79-a779-d025e4631b9e fwd="122.170.61.59" dyno= connect
= service= status=503 bytes=
←[35m2014-01-20T13:21:33.653423+00:00 heroku[router]:←[0m at=error code=H10 desc
="App crashed" method=GET path=/favicon.ico host=young-dusk-4185.herokuapp.com r
equest_id=7d0ebe05-3c61-40a5-b68b-8e65aa16ecee fwd="122.170.61.59" dyno= connect
= service= status=503 bytes=
←[35m2014-01-20T13:21:31.920663+00:00 heroku[router]:←[0m at=error code=H10 desc
="App crashed" method=GET path=/ host=young-dusk-4185.herokuapp.com request_id=9
d1cfd4c-df22-40f1-bf62-666794740d89 fwd="122.170.61.59" dyno= connect= service=
status=503 bytes=
←[35m2014-01-20T13:22:12.512932+00:00 heroku[router]:←[0m at=error code=H10 desc
="App crashed" method=GET path=/ host=young-dusk-4185.herokuapp.com request_id=b
c1c445c-c585-49bd-b1f9-a417a8f92b91 fwd="122.170.61.59" dyno= connect= service=
status=503 bytes=
←[35m2014-01-20T13:22:14.459868+00:00 heroku[router]:←[0m at=error code=H10 desc
="App crashed" method=GET path=/favicon.ico host=young-dusk-4185.herokuapp.com r
equest_id=a88c2ad8-1f4f-4010-b485-32456819e054 fwd="122.170.61.59" dyno= connect
= service= status=503 bytes=
←[35m2014-01-20T13:24:10.209495+00:00 heroku[router]:←[0m at=error code=H10 desc
="App crashed" method=GET path=/ host=young-dusk-4185.herokuapp.com request_id=3
24a985d-12e3-41a4-bd8a-02dc32f59332 fwd="122.170.61.59" dyno= connect= service=
status=503 bytes=
←[35m2014-01-20T13:24:11.917667+00:00 heroku[router]:←[0m at=error code=H10 desc
="App crashed" method=GET path=/favicon.ico host=young-dusk-4185.herokuapp.com r
equest_id=d940ebe5-4194-415b-96d8-6d7deba77b25 fwd="122.170.61.59" dyno= connect
= service= status=503 bytes=
←[33m2014-01-20T13:31:35+00:00 herokulink_ref,[object Object],slug-compiler:←[0m    Slug compilation timed
out: 900.760266585 seconds.

You can access the app here: http://young-dusk-4185.herokuapp.com/

What am I doing wrong?

Answer 1

Your crash mentions

cannot load such file -- nokogiri

Your Gemfile should list all of your required gems, otherwise Heroku can't load them. Try adding Nokogiri to your Gemfile. As mentioned above, you don't need to add date, open-uri, or JSON, as these are standard libraries.