docker builder 编译的时候遇到这个问题
/usr/local/lib/ruby/2.6.0/rubygems.rb:283:in `find_spec_for_exe': Could not find 'bundler' (2.0.2) required by your /usr/src/app/Gemfile.lock. (Gem::GemNotFoundException)
To update to the latest version installed on your system, run `bundle update --bundler`.
To install the missing version, run `gem install bundler:2.0.2`
from /usr/local/lib/ruby/2.6.0/rubygems.rb:302:in `activate_bin_path'
from /usr/local/bin/bundle:23:in `<main>'
本地环境bundler 已经安装最新的 2.0.2,gem source也指向了最新的国内版本