当我运行run rake db:create时，我收到此错误声明：
rake aborted!
dlopen(/Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/RMagick2.bundle, 9): Library not loaded: /usr/local/lib/libjpeg.8.dylib
Referenced from: /usr/local/opt/imagemagick/lib/libMagickCore.5.dylib
Reason: Incompatible library version: libMagickCore.5.dylib requires version 13.0.0 or later, but libjpeg.8.dylib provides version 12.0.0 - /Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/RMagick2.bundle
/Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/rmagick.rb:11:in `require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/rmagick.rb:11:in `<top (required)>'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:68:in `require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:66:in `each'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:66:in `block in require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:55:in `each'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:55:in `require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler.rb:128:in `require'
/Users/adam/rubydev/app-staging/config/application.rb:13:in `<top (required)>'
/Users/adam/rubydev/app-staging/Rakefile:5:in `require'
/Users/adam/rubydev/app-staging/Rakefile:5:in `<top (required)>'
/Users/adam/.rvm/gems/ruby-1.9.3-p327/bin/ruby_noexec_wrapper:14:in `eval'
/Users/adam/.rvm/gems/ruby-1.9.3-p327/bin/ruby_noexec_wrapper:14:in `<main>'
(See full trace by running task with --trace)
我花了一整个下午寻找问题以及如何解决问题，但没有成功。
有问题的部分在这里：
Referenced from: /usr/local/opt/imagemagick/lib/libMagickCore.5.dylib
Reason: Incompatible library version: libMagickCore.5.dylib requires version 13.0.0 or later, but libjpeg.8.dylib provides version 12.0.0 - /Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/RMagick2.bundle
如何在OS X Lion上升级libMagickCore.5.dylib？
提前谢谢
编辑：重新安装imagemagick后，我运行了rake db:create并获得了：
rake db:createrake aborted!
dlopen(/Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/RMagick2.bundle, 9): Library not loaded: /usr/local/opt/imagemagick/lib/libMagickCore.5.dylib
Referenced from: /Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/RMagick2.bundle
Reason: image not found - /Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/RMagick2.bundle
/Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/rmagick.rb:11:in `require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327/gems/rmagick-2.13.1/lib/rmagick.rb:11:in `<top (required)>'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:68:in `require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:66:in `each'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:66:in `block in require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:55:in `each'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler/runtime.rb:55:in `require'
/Users/adam/.rvm/gems/ruby-1.9.3-p327@global/gems/bundler-1.2.2/lib/bundler.rb:128:in `require'
/Users/adam/rubydev/app-staging/config/application.rb:13:in `<top (required)>'
/Users/adam/rubydev/app-staging/Rakefile:5:in `require'
/Users/adam/rubydev/app-staging/Rakefile:5:in `<top (required)>'
/Users/adam/.rvm/gems/ruby-1.9.3-p327/bin/ruby_noexec_wrapper:14:in `eval'
/Users/adam/.rvm/gems/ruby-1.9.3-p327/bin/ruby_noexec_wrapper:14:in `<main>'
(See full trace by running task with --trace)
答案 0 :(得分：8)
从命令行尝试gem pristine rmagick。
答案 1 :(得分：5)
我过去遇到过类似的问题，只是在操作系统和开发者工具上运行了一个软件更新。
如果这不能解决问题，您还可以尝试通过运行来删除并重新安装带有自制程序的imagemagic：
brew update
brew remove imagemagick
brew install imagemagick