Tutorial :require 'ruby-debug' LoadError: symbol not found



Question:

I've somehow broken my ruby configuration, and I'm not sure how to fix it. Here's an irb session:

>> require 'ruby-debug'  LoadError: dlsym(0x101a272d0, Init_ruby_debug): symbol not found - /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-base-0.10.3/lib/ruby_debug.bundle          from /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-base-0.10.3/lib/ruby_debug.bundle          from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'          from /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-base-0.10.3/lib/ruby-debug-base.rb:1          from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'          from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'          from /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-0.10.3/cli/ruby-debug.rb:5          from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'          from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'          from (irb):1  

Here's my ruby version:

ruby 1.8.7 (2010-06-23 patchlevel 299) [i686-darwin10]  

I'm not sure how to go about diagnosing and fixing this. Any suggestions? What other info should I provide?

Reinstalling the gem didn't fix it:

$ sudo gem install ruby-debug   Password:  Successfully installed ruby-debug-0.10.3  1 gem installed  Installing ri documentation for ruby-debug-0.10.3...  Installing RDoc documentation for ruby-debug-0.10.3...  


Solution:1

maybe it's missing some dependency .so file? I would use ldd -l to determine this in linux, dunno about mac.


Solution:2

Doing a fresh install of 1.8.7 via rvm fixed this problem for me.


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