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…
高可用性.负载均衡的mysql集群解决方案 一.mysql的市场占有率 二.mysql为什么受到如此的欢迎 三.mysql数据库系统的优缺点 四.网络服务器的需求 五.什么是mysql的集群 六.什么是负载均衡 七.mysql集群部署和实现方法 八.负载均衡的配置和测试 九.Mysql集群系统的测试(测试方案+测试脚本+测试结果分析) l mysql的市场占有率 MySQL是世界上最流行的开源数据库,已有1100多万的击活安装,每天超过五万的下 载.MySQL为全球开发者.DBA和IT管理者在可…
解决方案为,不要用sudo gem install就好了,卧槽…
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…
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:…
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…
解决方案: gem install rails -V ....其实他本身在后台运行,白白的给他中断好多次,用-V这个选项就可以直接回显信息了…
因做redis集群需要安装ruby,源码安装过后gem install redis安装redis接口报错 解决方案: 确保主机安装zlib,没有安装执行 yum -y install zlib zlib-devel 回到解压的ruby文件夹中 cd ext/zlib/ ruby extconf.rb sed -i s#\$\(top_srcdir\)#../..# Makefile make make install 安装成功过后执行gem install redis又有报错 解决方案: 确保安…
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…