11. じゃあビルドしましょう
$ git clone git@github.com:yasuhito/trema-book.git
Cloning into 'trema-book'...
The authenticity of host 'github.com (192.30.253.112)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'github.com,192.30.253.112' (RSA) to the list of
known hosts.
Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
12. じゃあビルドしましょう?
$ bundle install
The program 'bundle' is currently not installed. You can install it by typing:
sudo apt install ruby-bundler
13. じゃあビルドしましょう??
$ bundle install
…略…
Using bundler 1.11.2
Installing parser 2.2.3.0
An error occurred while installing ffi (1.9.10), and Bundler cannot continue.
Make sure that `gem install ffi -v '1.9.10'` succeeds before bundling.