Ruby on Rails / PostgreSQL – 启动server-libq.5.dylib时出现Library not Loaded错误
我有运行Ruby 1.9.2，Rails 3和postgreSQL 8.3的应用程序。 它最初设置并使用postgreSQL 9.1，但我卸载了9.1并安装并更改为8.3以确保Heroku共享数据库设置的兼容性。 它运行正常，但现在不行
现在，在处理这个应用程序时，当我运行数据库升级时，我收到此错误：
dlopen(/Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle, 9): Library not loaded: libpq.5.dylib Referenced from: /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle Reason: no suitable image found. Did find: /usr/lib/libpq.5.dylib: no matching architecture in universal wrapper - /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle 当我尝试运行服务器时，我收到以下错误消息：
/Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg.rb:4:in `require': dlopen(/Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle, 9): Library not loaded: libpq.5.dylib (LoadError) Referenced from: /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle Reason: no suitable image found. Did find: /usr/lib/libpq.5.dylib: no matching architecture in universal wrapper - /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg.rb:4:in `' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `block (2 levels) in require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `each' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `block in require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `each' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler.rb:122:in `require' from /Users/michaeljmccoy/www/mikemccoy/config/application.rb:7:in `' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0.rc2/lib/rails/commands.rb:53:in `require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0.rc2/lib/rails/commands.rb:53:in `block in ' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0.rc2/lib/rails/commands.rb:50:in `tap' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0.rc2/lib/rails/commands.rb:50:in `' from script/rails:6:in `require' from script/rails:6:in `'
我知道它们是非常相似的错误，可能与丢失的路径有关。 但是，当我添加路径到我的.profile文件并重新启动终端窗口时，我得到相同的错误。
您可能需要删除并重新安装pg gem，因此它是根据Postgres的正确版本编译的。
对于看到此错误并运行PostgresApp的任何人，这是一个已在9.2.4.3版中修复的已知问题：
讨论： https ： //github.com/PostgresApp/PostgresApp/issues/109
安装程序： https ： //github.com/PostgresApp/PostgresApp/releases/tag/9.2.4.3
当然，您可以获取最新版本（ http://postgresapp.com/ ）。 这两个版本让我重新启动并运行Rails 3.2.14和Ruby 2.0.0。 但请注意，当我安装9.2.4.3时，我的数据库仍然在psql中列出，但是当我安装9.3.0（目前的当前版本）时，我的数据库不再列出。