Herokuにデプロイしたが、｢Heroku | Welcome to your new app!｣のメッセージが表示される

Question

前提・実現したいこと

RRuby on Rails Tutorial(http://railstutorial.jp/)の第２章に書いてあるhello worldプログラムをHerokuにデプロイしたい。

発生している問題・エラーメッセージ

｢Heroku | Welcome to your new app!｣が表示され、表示したい｢hello, world!｣が表示されません。

heroku のマイページを確認すると｢https://aqueous-gorge-72050.herokuapp.com/｣は
掲載されているのですが、正しく表示できるページについている｢ruby｣の表記がついていませんでした。

### ソースコード
ec2-user:~/environment/toy_app (master) $ git commit -am "Add Hello"
[master e005b11] Add Hello
 1 file changed, 1 insertion(+), 1 deletion(-)
ec2-user:~/environment/toy_app (master) $ heroku create
Creating app... done, ⬢ aqueous-gorge-72050
https://aqueous-gorge-72050.herokuapp.com/ | https://git.heroku.com/aqueous-gorge-72050.git
ec2-user:~/environment/toy_app (master) $ git push heroku master
Counting objects: 5, done.
Compressing objects: 100% (5/5), done.
Writing objects: 100% (5/5), 464 bytes | 464.00 KiB/s, done.
Total 5 (delta 3), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote: 
remote: -----> Ruby app detected
remote: -----> Compiling Ruby/Rails
remote: -----> Using Ruby version: ruby-2.4.5
remote: -----> Installing dependencies using bundler 1.15.2
remote:        Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment
remote:        Warning: the running version of Bundler (1.15.2) is older than the version that created the lockfile (1.17.1). We suggest you upgrade to the latest version of Bundler by running `gem install bundler`.
remote:        Fetching gem metadata from https://rubygems.org/.........
remote:        Fetching version metadata from https://rubygems.org/..
remote:        Fetching dependency metadata from https://rubygems.org/.
remote:        Using rake 12.3.2
remote:        Using concurrent-ruby 1.1.4
remote:        Using minitest 5.11.3
remote:        Using thread_safe 0.3.6
remote:        Using builder 3.2.3
remote:        Using erubi 1.8.0
remote:        Using mini_portile2 2.4.0
remote:        Using crass 1.0.4
remote:        Using rack 2.0.6
remote:        Using nio4r 2.3.1
remote:        Using websocket-extensions 0.1.3
remote:        Using mini_mime 1.0.1
remote:        Using arel 8.0.0
remote:        Using bundler 1.15.2
remote:        Using coffee-script-source 1.12.2
remote:        Using execjs 2.7.0
remote:        Using method_source 0.9.2
remote:        Using thor 0.20.3
remote:        Using ffi 1.9.25
remote:        Using multi_json 1.13.1
remote:        Using pg 0.20.0
remote:        Using puma 3.9.1
remote:        Using rb-fsevent 0.10.3
remote:        Using tilt 2.0.9
remote:        Using turbolinks-source 5.2.0
remote:        Using i18n 1.3.0
remote:        Using tzinfo 1.2.5
remote:        Using nokogiri 1.9.1
remote:        Using websocket-driver 0.6.5
remote:        Using rack-test 1.1.0
remote:        Using sprockets 3.7.2
remote:        Using mail 2.7.1
remote:        Using coffee-script 2.4.1
remote:        Using uglifier 3.2.0
remote:        Using rb-inotify 0.10.0
remote:        Using turbolinks 5.0.1
remote:        Using activesupport 5.1.6
remote:        Using loofah 2.2.3
remote:        Using sass-listen 4.0.0
remote:        Using rails-dom-testing 2.0.3
remote:        Using globalid 0.4.1
remote:        Using activemodel 5.1.6
remote:        Using jbuilder 2.7.0
remote:        Using rails-html-sanitizer 1.0.4
remote:        Using sass 3.7.2
remote:        Using activerecord 5.1.6
remote:        Using actionview 5.1.6
remote:        Using activejob 5.1.6
remote:        Using actionpack 5.1.6
remote:        Using actioncable 5.1.6
remote:        Using actionmailer 5.1.6
remote:        Using railties 5.1.6
remote:        Using sprockets-rails 3.2.1
remote:        Using coffee-rails 4.2.2
remote:        Using jquery-rails 4.3.1
remote:        Using rails 5.1.6
remote:        Using sass-rails 5.0.6
remote:        Bundle complete! 16 Gemfile dependencies, 57 gems now installed.
remote:        Gems in the groups development and test were not installed.
remote:        Bundled gems are installed into ./vendor/bundle.
remote:        Bundle completed (3.04s)
remote:        Cleaning up the bundler cache.
remote:        Warning: the running version of Bundler (1.15.2) is older than the version that created the lockfile (1.17.1). We suggest you upgrade to the latest version of Bundler by running `gem install bundler`.
remote:        The latest bundler is 2.0.0.pre.2, but you are currently running 1.15.2.
remote:        To update, run `gem install bundler --pre`
remote: -----> Installing node-v8.10.0-linux-x64
remote: -----> Detecting rake tasks
remote: -----> Preparing app for Rails asset pipeline
remote:        Running: rake assets:precompile
remote:        Yarn executable was not detected in the system.
remote:        Download Yarn at https://yarnpkg.com/en/docs/install
remote:        Asset precompilation completed (1.47s)
remote:        Cleaning assets
remote:        Running: rake assets:clean
remote: -----> Detecting rails configuration
remote: 
remote: ###### WARNING:
remote: 
remote:        You have not declared a Ruby version in your Gemfile.
remote:        To set your Ruby version add this line to your Gemfile:
remote:        ruby '2.4.5'
remote:        # See https://devcenter.heroku.com/articles/ruby-versions for more information.
remote: 
remote: ###### WARNING:
remote: 
remote:        No Procfile detected, using the default web server.
remote:        We recommend explicitly declaring how to boot your server process via a Procfile.
remote:        https://devcenter.heroku.com/articles/ruby-default-web-server
remote: 
remote: 
remote: -----> Discovering process types
remote:        Procfile declares types     -> (none)
remote:        Default types for buildpack -> console, rake, web
remote: 
remote: -----> Compressing...
remote:        Done: 64.9M
remote: -----> Launching...
remote:        Released v11
remote:        https://agile-basin-83218.herokuapp.com/ deployed to Heroku
remote: 
remote: Verifying deploy... done.

### 補足情報（FW/ツールのバージョンなど）
Cloud9を利用しています。 
Ruby on Rails Tutorialの通りに記述しているつもりですが、どこに原因があるか分かりません。

とてつもなく初歩的な質問で申し訳ありませんが、お力を貸していただきたいと思います。

Answer 1

ec2-user:~/environment/toy_app (master) $ heroku create
Creating app... done, ⬢ aqueous-gorge-72050
https://aqueous-gorge-72050.herokuapp.com/ | https://git.heroku.com/aqueous-gorge-72050.git

と

ec2-user:~/environment/toy_app (master) $ git push heroku master
Counting objects: 5, done.

(中略)

remote: https://agile-basin-83218.herokuapp.com/ deployed to Heroku

をみる限り、アプリを作成したコマンドとデプロイのコマンドで異なるサーバーを利用しているようです。
新しく作成したheroku のリポジトリではなく、(元々の？)異なるホストにデプロイしているようです。

toy_app に設定されているリモートリポジトリは、どこになっていますか？(具体的には git remote -v の結果は、どうなっているでしょうか？)

---

古い heroku の git リポジトリを　新しく作った、git リポジトリに変更するのであれば、

git remote set-url heroku 新しいherokuのgitリポジトリURL 

を実行して変更してください。

Comments

[asatosi]

Cherry様、回答ありがとうございます。おかげさまで解決致しました。

【うまくいかなかったときの状態】
ec2-user:~/environment/toy_app (master) $ cat .git/config
[core]
repositoryformatversion = 0
filemode = true
bare = false
logallrefupdates = true
[remote "origin"]
url = [e-mail]:asatosi/toy_app.git
fetch = +refs/heads/*:refs/remotes/origin/*
[remote "heroku"]
url = https://git.heroku.com/agile-basin-83218.git
fetch = +refs/heads/*:refs/remotes/heroku/*
[branch "master"]
remote = origin
merge = refs/heads/master

【変更コマンド】git remote set-url heroku https://git.heroku.com/aqueous-gorge-72050.git

【うまくいった時の状態】
ec2-user:~/environment/toy_app (master) $ cat .git/config[core]
repositoryformatversion = 0
filemode = true
bare = false
logallrefupdates = true
[remote "origin"]
url = [e-mail]:asatosi/toy_app.git
fetch = +refs/heads/*:refs/remotes/origin/*
[remote "heroku"]
url = https://git.heroku.com/aqueous-gorge-72050.git
fetch = +refs/heads/*:refs/remotes/heroku/*
[branch "master"]
remote = origin
merge = refs/heads/master