在Rails捆綁安裝上出現錯誤

Question

安裝json（1.8.6）時發生錯誤，並且Bundler無法繼續。 捆綁之前，請確保gem install json -v '1.8.6'成功。

在Gemfile中：

rails解析為4.2.6，具體取決於

actionmailer was resolved to 4.2.6, which depends on
  actionpack was resolved to 4.2.6, which depends on
    actionview was resolved to 4.2.6, which depends on
      rails-dom-testing was resolved to 1.0.9, which depends on
        rails-deprecated_sanitizer was resolved to 1.0.3, which depends on
          activesupport was resolved to 4.2.6, which depends on
            json

Gem :: Ext :: BuildError：錯誤：無法構建gem本機擴展。

current directory: /tmp/bundler20180201-46774-s2jlm4json-1.8.6/gems/json-1.8.6/ext/json/ext/generator
/usr/bin/ruby2.3 -r ./siteconf20180201-46774-16pojxx.rb extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h

這是什么意思以及如何糾正它。我已經嘗試過更新和升級方法，是否還有其他方法可以刪除某些依賴項。

Answer 1

如有必要，請嘗試更新源列表，否則請刪除最近安裝的大多數文件，然后從頭開始全新安裝。 如果需要，分別安裝每個固定的包裝

sudo apt-get uprade 

也可以。

Answer 2

嘗試這個：

bundle update

如果發生捆扎器錯誤

gem install bundler  #After that run below command too.

bundle install