irb(main):001:0> require 'rubiderella'
Traceback (most recent call last):
10: from /Users/hikko624/.anyenv/envs/rbenv/versions/2.6.5/bin/irb:23:in `<main>'
9: from /Users/hikko624/.anyenv/envs/rbenv/versions/2.6.5/bin/irb:23:in `load'
8: from /Users/hikko624/.anyenv/envs/rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/irb-1.0.0/exe/irb:11:in `<top (required)>'
7: from (irb):1
6: from /Users/hikko624/.anyenv/envs/rbenv/versions/2.6.5/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:156:in `require'
5: from /Users/hikko624/.anyenv/envs/rbenv/versions/2.6.5/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:168:in `rescue in require'
4: from /Users/hikko624/.anyenv/envs/rbenv/versions/2.6.5/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:168:in `require'
3: from /Users/hikko624/.anyenv/envs/rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/rubiderella-0.1.0/lib/rubiderella.rb:5:in `<top (required)>'
2: from /Users/hikko624/.anyenv/envs/rbenv/versions/2.6.5/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require'
1: from /Users/hikko624/.anyenv/envs/rbenv/versions/2.6.5/lib/ruby/site_ruby/2.6.0/rubygems/core_ext/kernel_require.rb:92:in `require'
LoadError (cannot load such file -- pry-byebug)