rails server ができない

Question

始め
rails server を実行すると、

/usr/lib/ruby/vendor_ruby/bundler/runtime.rb:80:in `rescue in block (2 levels) in require': There was an error while trying to load the gem 'uglifier'. (Bundler::GemRequireError)
        from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:76:in `block (2 levels) in require'
        from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:72:in `each'
        from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:72:in `block in require'
        from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:61:in `each'
        from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:61:in `require'
        from /usr/lib/ruby/vendor_ruby/bundler.rb:99:in `require'
        from /home/syuumu200/Documents/Aptana Studio 3 Workspace/papapa_test/config/application.rb:7:in `<top (required)>'
        from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:133:in `require'
        from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:133:in `block in perform'
        from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:130:in `tap'
        from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:130:in `perform'
        from /var/lib/gems/2.3.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
        from /var/lib/gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
        from /var/lib/gems/2.3.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
        from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/command/base.rb:63:in `perform'
        from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/command.rb:44:in `invoke'
        from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands.rb:16:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

と表示されて実行できません。

どうすればよろしいでしょうか？
何卒御教授お願い致します

Answer 1

(1) Gemfileのtherubyracer のコメントを外します

vi Gemfile

gem 'therubyracer', platforms: :ruby

(2) bundle installします

(3) rails serverを再度実行します

この方法でいかがでしょうか。

Comments

[scrollman]

回答ありがとうございます。
変更を加えてrails server を実行すると
=> Booting Puma
=> Rails 5.1.4 application starting in development
=> Run `rails server -h` for more startup options
Exiting
/home/syuumu200/Documents/Aptana Studio 3 Workspace/papapa_test/config/environments/development.rb:1:in `<top (required)>': undefined local variable or method `papapatest' for main:Object (NameError)
from /var/lib/gems/2.3.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `require'
from /var/lib/gems/2.3.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `block in require'
from /var/lib/gems/2.3.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:258:in `load_dependency'
from /var/lib/gems/2.3.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `require'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/engine.rb:600:in `block (2 levels) in <class:Engine>'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/engine.rb:599:in `each'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/engine.rb:599:in `block in <class:Engine>'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/initializable.rb:30:in `instance_exec'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/initializable.rb:30:in `run'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/initializable.rb:59:in `block in run_initializers'
from /usr/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each'
from /usr/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
from /usr/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from'
from /usr/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from'
from /usr/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/initializable.rb:48:in `each'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/initializable.rb:48:in `tsort_each_child'
from /usr/lib/ruby/2.3.0/tsort.rb:415:in `call'
from /usr/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from'
from /usr/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component'
from /usr/lib/ruby/2.3.0/tsort.rb:347:in `each'
from /usr/lib/ruby/2.3.0/tsort.rb:347:in `call'
from /usr/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component'
from /usr/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each'
from /usr/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/initializable.rb:58:in `run_initializers'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/application.rb:353:in `initialize!'
from /home/syuumu200/Documents/Aptana Studio 3 Workspace/papapa_test/config/environment.rb:5:in `<top (required)>'
from config.ru:3:in `require_relative'
from config.ru:3:in `block in <main>'
from /var/lib/gems/2.3.0/gems/rack-2.0.3/lib/rack/builder.rb:55:in `instance_eval'
from /var/lib/gems/2.3.0/gems/rack-2.0.3/lib/rack/builder.rb:55:in `initialize'
from config.ru:in `new'
from config.ru:in `<main>'
from /var/lib/gems/2.3.0/gems/rack-2.0.3/lib/rack/builder.rb:49:in `eval'
from /var/lib/gems/2.3.0/gems/rack-2.0.3/lib/rack/builder.rb:49:in `new_from_string'
from /var/lib/gems/2.3.0/gems/rack-2.0.3/lib/rack/builder.rb:40:in `parse_file'
from /var/lib/gems/2.3.0/gems/rack-2.0.3/lib/rack/server.rb:319:in `build_app_and_options_from_config'
from /var/lib/gems/2.3.0/gems/rack-2.0.3/lib/rack/server.rb:219:in `app'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:24:in `app'
from /var/lib/gems/2.3.0/gems/rack-2.0.3/lib/rack/server.rb:354:in `wrapped_app'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:80:in `log_to_stdout'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:42:in `start'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:135:in `block in perform'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:130:in `tap'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands/server/server_command.rb:130:in `perform'
from /var/lib/gems/2.3.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
from /var/lib/gems/2.3.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
from /var/lib/gems/2.3.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/command/base.rb:63:in `perform'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/command.rb:44:in `invoke'
from /var/lib/gems/2.3.0/gems/railties-5.1.4/lib/rails/commands.rb:16:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
と表示されます。どうすればよろしいでしょうか？

[aromanokarisu]

当初の問題であった起動しないのはクリアできているように見えます。

エラーの最初の方に
```
undefined local variable or method `papapatest' for main:Object (NameError)
```
とありますが、papapatestという変数orメソッドが定義されてないということです。
papapatestを適切に設定するか削除するかで試行錯誤してみてください。（すみません、どのような設定で起動しようとしているのか不明なのでこれ以上の的確なアドバイスは難しいです）

[scrollman]

記述不足で申し訳ありません。
どのような設定について記述すればよろしいですか？

papapatest は aptana studioで作ったプロジェクト名なのですが、
これで何かわかりますか？

[aromanokarisu]

すみません、それだけではなんとも言えません。
プロジェクトでコーディングしたプログラムと照らし合わせればわかるかもしれません。

尚、こちらの質問のタイトルと内容が乖離しておりますので、この質問はクローズして、
・何でどんなことをしたかったのか
・書いたコード
・エラーコード
をまとめて新しく質問したほうが、回答率が上がると思われます。

[scrollman]

了解しました。
ありがとうございました。