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IP属地：重庆
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✗ rails s
Ignoring gem-wrappers-1.4.0 because its extensions are not built. Try: gem pristine gem-wrappers --version 1.4.0
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems.rb:241:in `bin_path': can't find gem railties (>= 0.a) (Gem::GemNotFoundException)
from /usr/local/bin/rails:22:in `<main>'[Ruby]《Ruby on Rails Tutorial》的搬运工之一
背景： 最近比较闲，想学习ruby on rails 于是找到了https://www.railstutorial.org 上的首推教程《Ruby on Rails Tuto...
