exabugs
commented
6 years ago apt-get だと 2.1.5p273 がインストールされる。 byebug は 2.2.0 以上が必要
root@31875604d301:/app# gem install bundler
Fetching: bundler-1.16.1.gem (100%)
Successfully installed bundler-1.16.1
Parsing documentation for bundler-1.16.1
Installing ri documentation for bundler-1.16.1
Done installing documentation for bundler after 7 seconds
1 gem installedroot@31875604d301:/app# gem install byebug
Fetching: byebug-9.1.0.gem (100%)
ERROR: Error installing byebug:
byebug requires Ruby version >= 2.2.0.root@31875604d301:/app# ruby -v
ruby 2.1.5p273 (2014-11-13) [x86_64-linux-gnu]
byebug https://qiita.com/jnchito/items/5aaf323ab4f24b526a61