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POError: cross-thread violation on rb_gc()
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  1. POError: cross-thread violation on rb_gc()
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    copied!<p>I'm new to Ruby on Rails. </p> <p>I ran the following in a terminal when I was going through creating a blog tutorial with Rails:</p> <pre><code>$ rails blog [BUG] cross-thread violation on rb_gc() (null) Abort trap </code></pre> <p>How do I determine what this error message means and how to fix it?</p> <pre><code>$ gem env RubyGems Environment: - RUBYGEMS VERSION: 1.3.7 - RUBY VERSION: 1.8.7 (2010-06-23 patchlevel 299) [i686-darwin10] - INSTALLATION DIRECTORY: /opt/local/lib/ruby/gems/1.8 - RUBY EXECUTABLE: /opt/local/bin/ruby - EXECUTABLE DIRECTORY: /opt/local/bin - RUBYGEMS PLATFORMS: - ruby - x86-darwin-10 - GEM PATHS: - /opt/local/lib/ruby/gems/1.8 - /Users/sunpech/.gem/ruby/1.8 - GEM CONFIGURATION: - :update_sources =&gt; true - :verbose =&gt; true - :benchmark =&gt; false - :backtrace =&gt; false - :bulk_threshold =&gt; 1000 - :sources =&gt; ["http://rubygems.org/", "http://gems.github.com"] - REMOTE SOURCES: - http://rubygems.org/ - http://gems.github.com </code></pre> <p><strong>UPDATE</strong></p> <p>I did some fiddling and I'm not getting the error message anymore. But I do notice that my environment is running a different path of Ruby now.</p> <pre><code>$ gem env RubyGems Environment: - RUBYGEMS VERSION: 1.3.5 - RUBY VERSION: 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0] - INSTALLATION DIRECTORY: /Library/Ruby/Gems/1.8 - RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby - EXECUTABLE DIRECTORY: /usr/bin - RUBYGEMS PLATFORMS: - ruby - universal-darwin-10 - GEM PATHS: - /Library/Ruby/Gems/1.8 - /Users/sunpech/.gem/ruby/1.8 - /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8 - GEM CONFIGURATION: - :update_sources =&gt; true - :verbose =&gt; true - :benchmark =&gt; false - :backtrace =&gt; false - :bulk_threshold =&gt; 1000 - :sources =&gt; ["http://rubygems.org/", "http://gems.github.com"] - REMOTE SOURCES: - http://rubygems.org/ - http://gems.github.com </code></pre> <p>This seems to imply that I have multiple installs of Ruby on my Mac box. One in /opt/local/bin/ and /usr/bin/. I think the former came from a MacPorts install, and the latter is what came with my system (possibly upgraded).</p>
 

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