rails-mysql rake db: create - Библиотека не загружена libmysqlclient.20.dylib image not found

Причина: изображение не найдено -/Users/mdurrant/.rvm/gems/ruby-2.1.5/extensions/x86_64-darwin-14/2.1.0-static/mysql2-0.3.20/mysql2/mysql2.bundle

Наше приложение требует mysql версии 5.6, которая, кажется, работает нормально -

$ mysql -uroot
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.27 MySQL Community Server (GPL)
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>

Однако, когда я пытаюсь создать базу данных из рельсов, я получаю:

$ rake db:create
rake aborted!
LoadError: dlopen(/Users/mdurrant/.rvm/gems/ruby-2.1.5/extensions/x86_64-darwin-14/2.1.0-static/mysql2-0.3.20/mysql2/mysql2.bundle, 9): Library not loaded: /usr/local/opt/mysql/lib/libmysqlclient.20.dylib
  Referenced from: /Users/mdurrant/.rvm/gems/ruby-2.1.5/extensions/x86_64-darwin-14/2.1.0-static/mysql2-0.3.20/mysql2/mysql2.bundle
  Reason: image not found - /Users/mdurrant/.rvm/gems/ruby-2.1.5/extensions/x86_64-darwin-14/2.1.0-static/mysql2-0.3.20/mysql2/mysql2.bundle
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/activesupport-3.2.22/lib/active_support/dependencies.rb:251:in 'require'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/activesupport-3.2.22/lib/active_support/dependencies.rb:251:in 'block in require'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/activesupport-3.2.22/lib/active_support/dependencies.rb:236:in 'load_dependency'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/activesupport-3.2.22/lib/active_support/dependencies.rb:251:in 'require'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/mysql2-0.3.20/lib/mysql2.rb:31:in '<top (required)>'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in 'require'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in 'block (2 levels) in require'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in 'each'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in 'block in require'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in 'each'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in 'require'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/gems/bundler-1.10.6/lib/bundler.rb:134:in 'require'
/Users/mdurrant/eq/lynx/config/application.rb:10:in '<top (required)>'
/Users/mdurrant/eq/lynx/Rakefile:10:in 'require'
/Users/mdurrant/eq/lynx/Rakefile:10:in '<top (required)>'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/bin/ruby_executable_hooks:15:in 'eval'
/Users/mdurrant/.rvm/gems/ruby-2.1.5/bin/ruby_executable_hooks:15:in '<main>'
(See full trace by running task with --trace)
14:18:13 mdurrant EQ-267 /Users/mdurrant/eq/lynx master
$

Ответы

Ответ 1

Исправлено:

gem uninstall mysql2

затем снова установите его с помощью

bundle  # gem install mysql2 would also work

Это перекомпилирует и разрешит ссылку, оставшуюся после установки mysql 5.7.9.

Ответ 2

OS X не может найти библиотеку libmysqlclient.18.dylib. Чтобы сделать его доступным, мы можем сделать следующее:

export DYLD_LIBRARY_PATH=/usr/local/mysql/lib:$DYLD_LIBRARY_PATH

к вашему ~/.bash_profile, не забудьте после этого запустить его:

$ source ~/.bash_profile

Затем:

 sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/local/lib/libmysqlclient.18.dylib