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/rubygems.rb:1113:in `<top (required)>'
        from <internal:gem_prelude>:4:in `require'
        from <internal:gem_prelude>:4:in `<internal:gem_prelude>'

回答1:

If you are using RVM, then run

rvm install rubygems 1.3.7 

this worked for me

来源：https://stackoverflow.com/questions/40070671/error-during-installing-ruby-on-rails-application-uninitialized-constant-gemba