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By: a guest on May 16th, 2012  |  syntax: None  |  size: 1.41 KB  |  hits: 11  |  expires: Never
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  1. Decided to get started using RVM on my Mac, unfortunately, right before continuing development on an otherwise sturdy app.
  2.  
  3. Upon start-up, there were errors in the log starting with
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  6. /!\ FAILSAFE /!\ Sat Dec 11 17:17:47 -0600 2010
  7. Status: 500 Internal Server Error
  8. uninitialized constant MysqlCompat::MysqlRes
  9. /Users/username/.rvm/gems/ruby-1.8.7-p302/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:440:in `load_missing_constant'
  10. /Users/username/.rvm/gems/ruby-1.8.7-p302/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:80:in `const_missing'
  11. /Users/username/.rvm/gems/ruby-1.8.7-p302/gems/activerecord-2.3.4/lib/active_record/connection_adapters/mysql_adapter.rb:9:in `define_all_hashes_method!'
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  13. From other posts, it appears mysql simply wasn’t being loaded properly.
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  15. The full fix probably depends on whatever hacks you took to get mysql and ruby on your system the first time. I didn’t see the steps al in one place, so here they are.
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  17. 1. Uninstall the mysql gem
  18. gem uninstall mysql
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  20. 2. Uninstall rvm’s ruby
  21. rvm remove ruby-1.8.7
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  23. 3. Install RVM considering the i386 architecture
  24. rvm_archflags="-arch i386" CFLAGS="-arch i386" LDFLAGS="-arch i386" rvm install 1.8.7 --patch osx-arch-fix
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  26. 4. Install mysql gem with architecture flags
  27. env ARCHFLAGS="-arch i386 -arch x86_64" ; gem install --no-rdoc --no-ri mysql -- --with-mysql-dir=/usr/local/mysql/lib/ --with-mysql-config=/usr/local/mysql/bin/mysql_config
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