无法为 ruby-debug-base 找到有效的 gem

Unable to find a valid gem for ruby-debug-base

我正在尝试安装 ruby-debug gem,需要 ruby-debug-base 作为依赖项。

gem install ruby-debug 错误:

ERROR:  Could not find a valid gem 'ruby-debug-base' (~> 0.10.6.0) in any repository
ERROR:  Possible alternatives: ruby-debug-base

Ruby 版本:2.3.1,which ruby 打印:

/Users/my-name/.rvm/rubies/ruby-2.3.1/bin/ruby

已尝试添加

source :rubyforge     
source 'http://gems.rubyforge.org' 

到我的 Gemfile,as seen in a similar question, here

当我尝试使用 gem install ruby-debug -v 0.10.5.rc9 安装旧版本的 gem 时,出现错误:

Ruby version 2.3.1 is too new

我试过只安装 ruby-debug-base,但遇到错误:

    current directory: /Users/my-name/.rvm/gems/ruby-2.3.1/gems/linecache-1.3.1/ext/linecache
/Users/my-name/.rvm/rubies/ruby-2.3.1/bin/ruby -r ./siteconf20170824-39487-dus4av.rb extconf.rb
Can't handle 1.9.x yet
*** extconf.rb failed ***

gem 'debugger' 放入 Gemfile 或安装它只是为了开发。

group :development do
  gem 'debugger'
end

Only 1.9.2 and 1.9.3 are supported. For 2.X rubies, consider using byebug.

甚至调试器的维护者gem 也提出了这个建议。看here.