当我运行gem install mysql2命令我收到以下错误信息: Building native extensions. This could take a while...
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
...
Could not create Make
我想安装ruby-debug宝石,需要ruby-debug-base作为依赖。 gem install ruby-debug错误出具有: ERROR: Could not find a valid gem 'ruby-debug-base' (~> 0.10.6.0) in any repository
ERROR: Possible alternatives: ruby-debug-base
因此,我启动旧的Rails服务器已经有一段时间了。甚至让软件包安装也花了很多技巧......但最终我从Rails 4.2.6升级到了4.2.9。该软件包安装得很好。我在Ruby 2.3.0上。但现在的问题是...每当我尝试运行: rails s
我得到以下错误: rails-html-sanitizer.rb:2:in `require': cannot load such file -- l