Posted about 8 years ago. Visible to the public.
Fix Rubygems error: undefined method `source_index' for Gem:Module
You are probably using Ruby 1.8.7 with a too recent versions of Rubygems.
Downgrade your Rubygems to the latest version that works with 1.8.7.
See also
- Fix Rubygems warning: Gem.source_index is deprecated, use Specification
- Fix Rubygems binary error: undefined method `activate_bin_path' for Gem:Module (NoMethodError)
- Bundler: Gemfile.lock is corrupt & gems are missing from the DEPENDENCIES section
Does your version of Ruby on Rails still receive security updates?
Rails LTS provides security patches for unsupported versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2).
