RailsWebサーバーの起動に問題があります。cmdプロンプトに「railsserver」と入力しようとしましたが、次のエラーが発生します。
C:\Ruby193\demo>rails server
←[31mCould not find gem 'jquery-rails (>= 0) x86-mingw32' in the gems available
on this machine.←[0m
←[33mRun `bundle install` to install missing gems.←[0m
しかし、バンドルインストールを実行して不足しているgemをインストールするたびに、次のエラーが発生します。
C:\Ruby193\demo>bundle install
Fetching gem metadata from https://rubygems.org/.........
Using rake (0.9.2.2)
Using i18n (0.6.0)
Using multi_json (1.2.0)
Using activesupport (3.2.3)
Using builder (3.0.0)
Using activemodel (3.2.3)
Using erubis (2.7.0)
Using journey (1.0.3)
Using rack (1.4.1)
Using rack-cache (1.2)
Using rack-test (0.6.1)
Using hike (1.2.1)
Using tilt (1.3.3)
Using sprockets (2.1.2)
Using actionpack (3.2.3)
Using mime-types (1.18)
Using polyglot (0.3.3)
Using treetop (1.4.10)
Using mail (2.4.4)
Using actionmailer (3.2.3)
Using arel (3.0.2)
Using tzinfo (0.3.33)
Using activerecord (3.2.3)
Using activeresource (3.2.3)
Using bundler (1.1.3)
Using coffee-script-source (1.3.1)
Using execjs (1.3.0)
Using coffee-script (2.2.0)
Using rack-ssl (1.3.2)
Installing json (1.6.6) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extensio
.
C:/Ruby193/bin/ruby.exe extconf.rb
creating Makefile
make
'make' is not recognized as an internal or external command,
operable program or batch file.
Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/json-1.6
6 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/gems/json-1.6.6/ext/json/ext/g
nerator/gem_make.out
An error occured while installing json (1.6.6), and Bundler cannot continue.
Make sure that `gem install json -v '1.6.6'` succeeds before bundling.
その後、運が悪かったのでjsonをインストールしようとしました。助言がありますか？