Ruby 安装混乱：无法安装 jekyll

Question

我试图使用 Jekyll 设置一个 GitHub 页面，它依赖于 Ruby（就像这里）。不幸的是，我认为我的安装有点混乱（经过几次sudo apt-get install ruby-full...... sudo apt-get remove ruby-full）

现在，我的计算机上使用的是旧版本的 Ruby（我认为），无法更新。这是我的系统现在的状态：

$ ruby -v
ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-linux-gnu]
$ gem -v
3.1.2

$ gem install jekyll
ERROR:  Error installing jekyll:
    The last version of sass-embedded (~> 1.54) to support your Ruby & RubyGems was 1.58.0. Try installing it with `gem install sass-embedded -v 1.58.0` and then running the current command again
    sass-embedded requires RubyGems version >= 3.3.22. The current RubyGems version is 3.1.2. Try 'gem update --system' to update RubyGems itself.

$ gem update --system
Updating rubygems-update
Successfully installed rubygems-update-3.4.6
Parsing documentation for rubygems-update-3.4.6
Done installing documentation for rubygems-update after 0 seconds
Parsing documentation for rubygems-update-3.4.6
Done installing documentation for rubygems-update after 0 seconds
Installing RubyGems 3.4.6
Traceback (most recent call last):
    5: from setup.rb:22:in `<main>'
    4: from setup.rb:22:in `require'
    3: from /home/jarret/gems/gems/rubygems-update-3.4.6/lib/rubygems.rb:1332:in `<top (required)>'
    2: from /home/jarret/gems/gems/rubygems-update-3.4.6/lib/rubygems.rb:1332:in `require'
    1: from /usr/lib/ruby/vendor_ruby/rubygems/defaults/operating_system.rb:49:in `<top (required)>'
/usr/lib/ruby/vendor_ruby/rubygems/defaults/operating_system.rb:50:in `<class:Specification>': undefined method `rubyforge_project=' for class `Gem::Specification' (NameError)
    3: from setup.rb:22:in `<main>'
    2: from setup.rb:22:in `require'
    1: from /home/jarret/gems/gems/rubygems-update-3.4.6/lib/rubygems.rb:1328:in `<top (required)>'
/home/jarret/gems/gems/rubygems-update-3.4.6/lib/rubygems.rb:1342:in `rescue in <top (required)>': undefined method `rubyforge_project=' for class `Gem::Specification' (NameError)
Loading the /usr/lib/ruby/vendor_ruby/rubygems/defaults/operating_system.rb file caused an error. This file is owned by your OS, not by rubygems upstream. Please find out which OS package this file belongs to and follow the guidelines from your OS to report the problem and ask for help.

$ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 3.1.2
  - RUBY VERSION: 2.7.0 (2019-12-25 patchlevel 0) [x86_64-linux-gnu]
  - INSTALLATION DIRECTORY: /home/jarret/gems
  - USER INSTALLATION DIRECTORY: /home/jarret/.gem/ruby/2.7.0
  - RUBY EXECUTABLE: /usr/bin/ruby2.7
  - GIT EXECUTABLE: /usr/bin/git
  - EXECUTABLE DIRECTORY: /home/jarret/gems/bin
  - SPEC CACHE DIRECTORY: /home/jarret/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /home/jarret/gems
     - /home/jarret/.gem/ruby/2.7.0
     - /var/lib/gems/2.7.0
     - /usr/lib/ruby/gems/2.7.0
     - /usr/share/rubygems-integration/2.7.0
     - /usr/share/rubygems-integration/all
     - /usr/lib/x86_64-linux-gnu/rubygems-integration/2.7.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /home/jarret/gems/bin
     - /home/jarret/miniconda3/condabin
     - /usr/local/sbin
     - /usr/local/bin
     - /usr/sbin
     - /usr/bin
     - /sbin
     - /bin
     - /usr/games
     - /usr/local/games
     - /snap/bin
     - /opt/fiji/Fiji.app

我尝试过很多删除/安装，我尝试过更新 gem，ruby。到目前为止，还没有什么能解锁我。

Answer 1

尝试更换ruby3.0，sass1.58太高级，可能不兼容ruby2.7。请按照以下步骤操作并运行命令。

1. rvm install 3.0
2. rvm use 3.0.0 -default
3. rvm -v
4. rvm gemset update
5. gem install jekyll
6. jekyll -v