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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
Martin Straub 11 years ago
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