`require': 無法加載此類文件 -- rdoc (LoadError)

Question

在嘗試運行“irb”時，我遇到了這個錯誤：

<internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- rdoc (LoadError)

從

from <internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
from /usr/lib/ruby/gems/3.0.0/gems/irb-1.4.1/lib/irb/input-method.rb:17:in `<top (required)>'
from /usr/lib/ruby/gems/3.0.0/gems/irb-1.4.1/lib/irb/context.rb:14:in `require_relative'
from /usr/lib/ruby/gems/3.0.0/gems/irb-1.4.1/lib/irb/context.rb:14:in `<top (required)>'
from /usr/lib/ruby/gems/3.0.0/gems/irb-1.4.1/lib/irb.rb:16:in `require_relative'
from /usr/lib/ruby/gems/3.0.0/gems/irb-1.4.1/lib/irb.rb:16:in `<top (required)>'
from <internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
from <internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
from /usr/lib/ruby/gems/3.0.0/gems/irb-1.4.1/exe/irb:9:in `<top (required)>'
from /usr/bin/irb:25:in `load'
from /usr/bin/irb:25:in `<main>'

我嘗試將 ruby 版本從 3.0.3 降級到 2.7，但沒有奏效； 有同樣的錯誤。

Answer 1

對我來說，運行gem install rdoc不起作用，所以我將它添加到 Gemfile: gem "rdoc", require: false ，然后運行bundle install 。 那行得通。