error during installing ruby on rails application uninitialized constant Gem::BasicSpecification (NameError)
问题 I am trying to install ruby on rails application fedena on Ubuntu server. It uses some old ruby library. I followed the instructions on http://paritosh.passion8.co.in/post/49878771105/fedena-installation-guide gem install rubygems-update -v=1.3.7 /usr/lib/ruby/vendor_ruby/rubygems/defaults/operating_system.rb:43:in `<top (required)>': uninitialized constant Gem::BasicSpecification (NameError) from /usr/local/lib/site_ruby/2.3.0/rubygems.rb:1113:in `require' from /usr/local/lib/site_ruby/2.3.0