转自:http://my.oschina.net/moks/blog/200344 [摘要]Because libv8 is the interface for the V8 engine used by therubyracer, you may need to use libv8, even if you have V8 installed already. If you wish to use your own V8 installation, rather than have it bu…

最近打算看ruby. 今天用命令gem install rails的时候碰到这样的错误提示: ERROR:  Error installing XXXXXXXXXXX:            The 'XXXXXXXXXXXX' native gem requires installed build tools.         Please update your PATH to include build tools or download the DevKit    from 'http:…

ERROR:  While executing gem ... (Gem::FilePermissionError)     You don't have write permissions for the /Library/Ruby/Gems/2.0.0 directory. 原因是没有写的权限 解决办法 sudo gem install dryrun…

gem sources #查看目前的源 gem sources --remove https://rubygems.org/ gem sources -a https://ruby.taobao.org/ 再执行 gem install rails…

gem install pg -v '0.18.2' Building native extensions. This could take a while... ERROR: Error installing pg: ERROR: Failed to build gem native extension. current directory: /Users/bevan/.rvm/gems/ruby-2.3.0/gems/pg-0.18.2/ext /Users/bevan/.rvm/rubie…

这几天在ubuntu14.04.1 64位上安装rails的时候,由于大天朝的原因,更换了淘宝源,然后执行 gem install rails 这个时候,总是会提示 Errno::ECONNRESET: Connection reset by peer - SSL_connect (https://ruby.taobao.org 的错误. 然后就是一如既往的Google,看了很多帖子,也浪费了大量的时间,最后看到别人说换个ruby的版本就可以了,然后尝试一下,结果真的成功了. 回过头来仔细想了一…

准备在windows7上安装Jekyll, 安装好了Ruby和RubyDevKit之后,准备使用: $ gem install jekyll 安装jekyll,但是返回错误: ERROR: While executing gem ... (Gem::RemoteFetcher::FetchError) Errno::ECONNRESET: An existing connection was forcibly closed by the remote host. - SSL_connect 解决…

运行 ‘bundle install’ 或者 ‘gem install mysql2′ 遇到如下错误 > gem install mysql2 ERROR: Error installing mysql2: The 'mysql2' native gem requires installed build tools. Please update your PATH to include build tools or download the DevKit from 'http://rubyins…

xcode 10 上pod install 出现错误 error: /Users/apple/Desktop/VenusClient/Pods/Pods/Target Support Files/Pods-VenusMaster/Pods-VenusMaster.debug.xcconfig: unable to open file (in target "VenusMaster" in project "VenusMaster") (in target 'Venu…

问题描述 RedisDump 是一个用于 Redis 数据导人/导出的工具,是基于 Ruby 实现的,需要先安装 Ruby.但因为 Mac 自带有 Ruby 所以我直接用gem install redis-dump进行安装,但却出现错误. 不想更改系统自带的环境,因为后面遇到兼容性问题会很麻烦.于是我重新用 homebrew 装了一个 Ruby ,简单的一句指令即可: brew install ruby 原以为自己装了新版本 ruby 之后,再执行gem install redis-dump就不…