Question

I’ve just installed Ruby on Rails via rvm on a mac running mountain lion.
When i run the server i got this error , what it’s means?

   **********:DII ****$ rails server
dyld: lazy symbol binding failed: Symbol not found: _rb_utf8_encoding
  Referenced from: /Users/*******/.rvm/gems/ruby-1.9.3-p327@DII/gems/nokogiri-1.5.5/lib/nokogiri/nokogiri.bundle
  Expected in: flat namespace

dyld: Symbol not found: _rb_utf8_encoding
  Referenced from: /Users/******/.rvm/gems/ruby-1.9.3-p327@DII/gems/nokogiri-1.5.5/lib/nokogiri/nokogiri.bundle
  Expected in: flat namespace

Trace/BPT trap: 5

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The problem was that before upgrading ruby this project was running under ruby 1.8.7 and i get this problem. It was only a test project so i created a new one from zero

Answer 1

It means that you’re trying to run ruby 1.8.7 with gems that were compiled for ruby 1.9.3 – something has got its knickers in a twist

I’d try re-installing the gems into a clean gemset and make sure you are using the ruby version that you think you are