缺少 gem 法拉第

Question

我是 Ruby 的新手，我只是想运行一个脚本。首先，当我尝试捆绑安装时，它说：

    Daniels-Air:Documents Daniel$ bundle install
Fetching gem metadata from https://rubygems.org/........
Fetching version metadata from https://rubygems.org/...
Fetching dependency metadata from https://rubygems.org/..
Resolving dependencies...
Rubygems 2.0.3 is not threadsafe, so your gems will be installed one at a time. Upgrade to Rubygems 2.1.0 or higher to enable parallel gem installation.
Installing ffi 1.9.10 with native extensions

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/include/ruby.h


Gem files will remain installed in /var/folders/_r/8pxmrph95fj0km8h7sfkw9f40000gn/T/bundler20151216-21689-8jiqebffi-1.9.10/gems/ffi-1.9.10 for inspection.
Results logged to /var/folders/_r/8pxmrph95fj0km8h7sfkw9f40000gn/T/bundler20151216-21689-8jiqebffi-1.9.10/gems/ffi-1.9.10/ext/ffi_c/gem_make.out
Using multipart-post 2.0.0
Installing json 1.8.3 with native extensions

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/include/ruby.h


Gem files will remain installed in /var/folders/_r/8pxmrph95fj0km8h7sfkw9f40000gn/T/bundler20151216-21689-5mz4k9json-1.8.3/gems/json-1.8.3 for inspection.
Results logged to /var/folders/_r/8pxmrph95fj0km8h7sfkw9f40000gn/T/bundler20151216-21689-5mz4k9json-1.8.3/gems/json-1.8.3/ext/json/ext/generator/gem_make.out
Using multi_json 1.11.2
Using rubyzip 1.1.7
Using websocket 1.2.2
Using bundler 1.11.1
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.

当我尝试执行该文件时，我遇到了问题：

    Could not find gem 'faraday' in any of the gem sources listed in your Gemfile or available on this machine.
Run `bundle install` to install missing gems.

我从哪里得到这个 'faraday' gem？它应该随我尝试运行的代码一起提供，还是我应该更新一些东西？抱歉，如果我的术语有误，我是 Ruby.

的新手

Answer 1

我刚刚意识到我需要做的就是安装 gem。它从 RubyGems.org 库中清楚地表明了这一点。刚刚输入：

sudo gem install faraday

到航站楼

缺少 gem 法拉第

Missing gem Faraday

ruby

gem

rubygems

faraday