Ruby gem installation error after OSX Yosemite and Xcode 6 installation

Question

I tried installing a gem like I did before installing Yosemite, but now I'm getting an error:

/Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:159:in `synchronize': ERROR: Failed to build gem native extension. (Gem::Ext::BuildError)

ERROR: Failed to build gem native extension.

deadlock; recursive locking

This is the command I wrote:

sudo gem install mysql2

This is the message it appears in the terminal:

Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/autotest-fsevent-0.2.9 for inspection. Results logged to /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-14/2.0.0/autotest-fsevent-0.2.9/gem_make.out

Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/autotest-fsevent-0.2.9 for inspection. Results logged to /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-14/2.0.0/autotest-fsevent-0.2.9/gem_make.out from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:159:in build_extension' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:198:inblock in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:195:in each' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:195:in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:1436:in block in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/user_interaction.rb:45:inuse_ui' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:1434:in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/stub_specification.rb:60:in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/basic_specification.rb:56:in contains_requirable_file?' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:925:inblock in find_inactive_by_path' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:924:in each' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:924:infind' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:924:in find_inactive_by_path' from /Library/Ruby/Site/2.0.0/rubygems.rb:185:intry_activate' from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:132:in rescue in require' from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:144:in require' from /Library/Ruby/Site/2.0.0/rubygems.rb:601:in load_yaml' from /Library/Ruby/Site/2.0.0/rubygems/config_file.rb:328:inload_file' from /Library/Ruby/Site/2.0.0/rubygems/config_file.rb:197:in initialize' from /Library/Ruby/Site/2.0.0/rubygems.rb:289:innew' from /Library/Ruby/Site/2.0.0/rubygems.rb:289:in configuration' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:63:inrun' from /Library/Ruby/Site/2.0.0/rubygems/ext/ext_conf_builder.rb:38:in block in build' from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/tempfile.rb:324:in open' from /Library/Ruby/Site/2.0.0/rubygems/ext/ext_conf_builder.rb:17:in build' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:161:in block (2 levels) in build_extension' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:160:in chdir' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:160:inblock in build_extension' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:159:in synchronize' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:159:in build_extension' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:198:in block in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:195:ineach' from /Library/Ruby/Site/2.0.0/rubygems/ext/builder.rb:195:in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:1436:inblock in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/user_interaction.rb:45:in use_ui' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:1434:in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/stub_specification.rb:60:in build_extensions' from /Library/Ruby/Site/2.0.0/rubygems/basic_specification.rb:56:in contains_requirable_file?' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:925:in block in find_inactive_by_path' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:924:ineach' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:924:in find' from /Library/Ruby/Site/2.0.0/rubygems/specification.rb:924:in find_inactive_by_path' from /Library/Ruby/Site/2.0.0/rubygems.rb:185:in try_activate' from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:132:in rescue in require' from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:144:in require' from /Library/Ruby/Site/2.0.0/rubygems.rb:601:in load_yaml' from /Library/Ruby/Site/2.0.0/rubygems/config_file.rb:328:in load_file' from /Library/Ruby/Site/2.0.0/rubygems/config_file.rb:197:in initialize' from /Library/Ruby/Site/2.0.0/rubygems/gem_runner.rb:74:in new' from /Library/Ruby/Site/2.0.0/rubygems/gem_runner.rb:74:in do_configuration' from /Library/Ruby/Site/2.0.0/rubygems/gem_runner.rb:39:in run' from /usr/bin/gem:21:in'

I am using OSX 10.10 and Xcode 6 Beta.

Do any of you guys have any idea as to what to do about this?

Answer 1

I had a same problem when I installed mysql via bitnami, Looks like you do not have all required mysql libraries .

I used brewsh and reinstalled mysql by

brew install mysql

sudo gem install mysql2

Also you need to load the dynamic library in your .profile file in the home directory, you can achieve this by adding these lines in .profile file .

export PATH=$PATH:$MYSQL
export DYLD_LIBRARY_PATH=/Applications/mysql/lib:$DYLD_LIBRARY_PATH

In the above two lines of code

/Applications/mysql/lib , is the path where your mysql libraries are installed , in yours it might be different please check and use as per your environment