bundle install 出现  'gem install mysql2 -v '0.3.15' succeeds before bunding ' 解决:sudo apt-get install libmysql-ruby '如果你找不到包尝试以下的包 參考:http://packages.ubuntu.com/search?keywords=mysql-ruby ruby-dataobjects-mysql libmysqldb-ruby ruby-dbd-mysql sudo apt-…

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…

rails new demo --database=mysql最后报错Gem files will remain installed in D:/BillFiles/rails_dev/Ruby193/lib/ruby/gems/1.9.1/gems/mysql2-0.3.15 for inspection.Results logged to D:/BillFiles/rails_dev/Ruby193/lib/ruby/gems/1.9.1/extensions/x86-mingw32/1.9…

今天遇到的问题,是使用gem install mysql遇到的.报下面的错误 Building native extensions. This could take a while... ERROR: Error installing mysql2: ERROR: Failed to build gem native extension. /usr/bin/ruby1.9.1 extconf.rb /usr/lib/ruby//rubygems/custom_require.rb::in `re…

Gem::Ext::BuildError: ERROR: Failed to build gem native extension. /Users/angela/.rbenv/versions/1.9.3-p545/bin/ruby -r ./siteconf20170106-59264-robjdg.rb extconf.rb --use-system-libraries checking if the C compiler accepts ... yes checking if the C…

10.11 cocoapods安装命令: sudo gem install -n /usr/local/bin cocoapods…

在安装了rvm来管理多版本的ruby之后,想在不同环境下安装一些gems,结果gem install puma 之后,发现一次又一次失败. gem install 出现Errno::ECONNRESET: Connection reset by peer - SSL_connect (https://api.rubygems.org 起初以为原因是:可能因为openssl上次的心血漏洞,使得服务器更新了ssl,拒绝所有低版本的ssl链接. 于是解决办法: 1. rvm pkg install o…

1. 尝试更新 sudo gem update --system 2. 查看安装详细 sudo gem install cocoapods -V 3.详细使用有个链接 http://blog.csdn.net/meegomeego/article/details/24005567…

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…

文章是从个人博客转过来的,  可以直接访问 iwangzheng.com https://github.com/thoughtbot/factory_girl https://github.com/thoughtbot/factory_girl/blob/master/GETTING_STARTED.md http://ruby.taobao.org/ 今天项目结束,打算搞一下接手这个项目之前的单元测试,因为接受的时候很多测试是跑不通的,于是重新学习了一下 factory_girl gem in…