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railsでビューとコントローラー作ろうと思ったらエラーじゃて

技術的なこと

小学生でもわかるRuby on Rails入門　をはじめたところ

 

しょっぱなからエラーでた

 

ビューとコントローラー作ろうとしたらー、こんなん出た

# rails g controller users index show


Could not find gem 'sqlite3 (>= 0) ruby' in the gems available on this machine.


Run `bundle install` to install missing gems.

 

で、gemでsqlite3インストールしようとしたら、また言われたやで

# gem install sqlite3


Building native extensions.  This could take a while...


ERROR:  Error installing sqlite3:


        ERROR: Failed to build gem native extension.




    /root/.rbenv/versions/2.1.3/bin/ruby extconf.rb


checking for sqlite3.h... no


sqlite3.h is missing. Try 'port install sqlite3 +universal',


'yum install sqlite-devel' or 'apt-get install libsqlite3-dev'


and check your shared library search path (the


location where your sqlite3 shared library is located).


*** extconf.rb failed ***


Could not create Makefile due to some reason, probably lack of necessary


libraries and/or headers.  Check the mkmf.log file for more details.  You may


need configuration options.


・・・(略)

 

 

なんで、sqlite-devel入れるやで

# yum install sqlite-devel

 

 

再度、gemでsqlite3インストールやで

# gem install sqlite3


Building native extensions.  This could take a while...


Successfully installed sqlite3-1.3.9


Parsing documentation for sqlite3-1.3.9


Installing ri documentation for sqlite3-1.3.9


Done installing documentation for sqlite3 after 0 seconds


1 gem installed

 

 

ビューとコントローラー作るやで(2回目)。って今度は違うの出とる

 

# rails g controller users index show


Could not find gem 'uglifier (>= 1.3.0) ruby' in the gems available on this machine.


Run `bundle install` to install missing gems.

 

 

んじゃ、uglifier入れるやで

# gem install uglifier


Fetching: uglifier-2.5.3.gem (100%)


Successfully installed uglifier-2.5.3


Parsing documentation for uglifier-2.5.3


Installing ri documentation for uglifier-2.5.3


Done installing documentation for uglifier after 0 seconds


1 gem installed

 

ビューとコントローラー作るやで(3回目)。って今度も違うの出とる

# rails g controller users index show


Could not find gem 'turbolinks (>= 0) ruby' in the gems available on this machine.


Run `bundle install` to install missing gems.

 

 

turbolinks入れるわ

# gem install turbolinks                  


Fetching: turbolinks-2.5.1.gem (100%)


Successfully installed turbolinks-2.5.1


Parsing documentation for turbolinks-2.5.1


Installing ri documentation for turbolinks-2.5.1


Done installing documentation for turbolinks after 0 seconds


1 gem installed

 

 

ビューとコントローラー作るやで(5回目)。次も言われた

# rails g controller users index show


/root/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/execjs-2.2.2/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)


・・・(略)

 

 

Gemfileを修正するやで。下記のようにコメントアウトされとるから、コメントアウト外すやで

#  gem 'therubyracer',  platforms: :ruby

 

 

ビューとコントローラー作るやで(6回目)。さて、次はなんじゃて

# rails g controller users index show    


Could not find gem 'therubyracer (>= 0) ruby' in the gems available on this machine.


Run `bundle install` to install missing gems.

 

 

therubyracer入れるわ。そしてエラーじゃて

 

 

# gem install therubyracer                


Fetching: ref-1.0.5.gem (100%)


Successfully installed ref-1.0.5


Fetching: libv8-3.16.14.7-x86_64-linux.gem (100%)


Successfully installed libv8-3.16.14.7-x86_64-linux


Fetching: therubyracer-0.12.1.gem (100%)


Building native extensions.  This could take a while...


ERROR:  Error installing therubyracer:


        ERROR: Failed to build gem native extension.




    /root/.rbenv/versions/2.1.3/bin/ruby extconf.rb




(中略)




make: g++: Command not found


make: *** [accessor.o] Error 127




・・・(略)

 

 

ほんじゃ、gcc++入れるじゃて

yum -y install gcc-c++

 

therubyracer入れるわ(2回目)。

 

# gem install therubyracer


Building native extensions.  This could take a while...


Successfully installed therubyracer-0.12.1


Parsing documentation for therubyracer-0.12.1


Installing ri documentation for therubyracer-0.12.1


Done installing documentation for therubyracer after 0 seconds


1 gem installed

 

ビューとコントローラー作るやで。

# rails g controller users index show     


      create  app/controllers/users_controller.rb


       route  get 'users/show'


       route  get 'users/index'


      invoke  erb


      create    app/views/users


      create    app/views/users/index.html.erb


      create    app/views/users/show.html.erb


      invoke  test_unit


      create    test/controllers/users_controller_test.rb


      invoke  helper


      create    app/helpers/users_helper.rb


      invoke    test_unit


      create      test/helpers/users_helper_test.rb


      invoke  assets


      invoke    coffee


      create      app/assets/javascripts/users.js.coffee


      invoke    scss


      create      app/assets/stylesheets/users.css.scss

 

出来たやで。

 

 

 

■参考サイト

http://qiita.com/htk_jp/items/1100a04f45151c928378

http://qiita.com/yamagh/items/61e540765fa4d2152dc4