私はgemをインストールしました。gem -vと入力するとすべてOKになります。私はWindows 10、教室環境、Ruby v 2.2を持っています。しかし、上記のコマンドをテストしたり実行したりすると、次のような結果が得られます。D: sites> railsを作成するときにGemsがインストールされない新しいsimple_cms -d mysql
Fetching gem metadata from https://rubygems.org/...........
Fetching version metadata from https://rubygems.org/...
Fetching dependency metadata from https://rubygems.org/..
Resolving dependencies.....
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/rake-11.2.2.gem)
Using i18n 0.7.0
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/json-1.8.3.gem)
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/minitest-5.9.0.gem)
Using thread_safe 0.3.5
Using builder 3.2.2
Using erubis 2.7.0
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/mini_portile2-2.1.0.gem)
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/pkg-config-1.1.7.gem)
Using rack 1.6.4
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/mime-types-data-3.2016.0521.gem)
Using arel 6.0.3
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/debug_inspector-0.0.2.gem)
Using bundler 1.11.2
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/byebug-9.0.5.gem)
Using coffee-script-source 1.10.0
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/execjs-2.7.0.gem)
Using thor 0.19.1
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/concurrent-ruby-1.0.2.gem)
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/multi_json-1.12.1.gem)
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/mysql2-0.4.4-x86-mingw32.gem)
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/sass-3.4.22.gem)
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/tilt-2.0.5.gem)
Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://rubygems.global.ssl.fastly.net/gems/turbolinks-source-5.0.0.gem)
An error occurred while installing rake (11.2.2), and Bundler cannot continue.
Make sure that `gem install rake -v '11.2.2'` succeeds before bundling.