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_ Install&Setup

Step.1

Check if the rails has already been installed.

$ rails --version

Step.2

If the rails has not been installed yet, execute the following command

$ gem install rails

_ HowToUse

Step.1

Create new application.

$ rails new <Application Name>

Step.2

Launch application.

$ cd <Application Name>
$ rails server

In case you encounter the error message of "Could not find a JavaScript runtime.", execute the following commands.

$ gem install execjs
$ gem install therubyracer

Open the Gemfile and append the following lines.

$ vi Gemfile

gem ‘execjs’
gem ‘therubyracer’

$ bundle install

Step.3

Access the following page.

http://localhost:3000/

Step.4

Create controller and view files.

$ rails generate controller <Controller Name> <Method(View)> <Method(View)>

(Example)

$ rails generate controller Say hello goodbye

Step.5

Access the following page.

http://localhost:3000/say/hello/

#ref(): File not found: "CreateApplication_fig2.png" at page "HowToUse/RubyOnRails/4.1"

_ Author

S.Yatsuzuka