Rails服務器在一個項目上工作，但不在其他項目上

Question

我正在做我的第二個Ruby項目，只是在這里學習，但是當我創建一個新的rails項目然后進入文件夾並鍵入

rails server

我收到此錯誤：

/Library/Ruby/Gems/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle:
  dlopen(/Library/Ruby/Gems/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle, 9):
  Library not loaded: libmysqlclient.18.dylib (LoadError)
Referenced from: /Library/Ruby/Gems/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle
Reason: image not found - /Library/Ruby/Gems/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle
from /Library/Ruby/Gems/1.8/gems/mysql2-0.3.11/lib/mysql2.rb:9
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in 'require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in 'require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in 'each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in 'require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in 'each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in 'require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler.rb:122:in 'require'
from /Users/memin/Sites/simple_cms/config/application.rb:7
from /Library/Ruby/Gems/1.8/gems/railties-3.2.1/lib/rails/commands.rb:53:in 'require'
from /Library/Ruby/Gems/1.8/gems/railties-3.2.1/lib/rails/commands.rb:53
from /Library/Ruby/Gems/1.8/gems/railties-3.2.1/lib/rails/commands.rb:50:in 'tap'
from /Library/Ruby/Gems/1.8/gems/railties-3.2.1/lib/rails/commands.rb:50
from script/rails:6:in 'require'
from script/rails:6

這很奇怪，因為我有一個運行良好的項目，但是這個錯誤使我傻眼了。

Answer 1

我花了不少於3個小時來解決這個問題-在經過至少4個“解決方案”之后，這是永久解決問題的方法，至少對我而言。 現在一切正常。 你快到了！！ 不要放棄！ 將這段代碼放入.profile和.bash_profile文件中。 如果您不知道該怎么做，請在每次打開終端時在終端中鍵入此命令... export DYLD_LIBRARY_PATH="/usr/local/mysql/lib:$DYLD_LIBRARY_PATH"

* *好的，好的，這就是我的.bash_profile的樣子： alias ll="ls -lahG" alias whereami="pwd"

export PATH="/Applications/MAMP/bin:/usr/local/bin:/usr/local/sbin:usr/local/my$ export DYLD_LIBRARY_PATH="/usr/local/mysql/lib:$DYLD_LIBRARY_PATH"

要編輯bash，請在根（$）終端菜單中鍵入“ ls -la ”，然后鍵入nano .bash_profile和/或nano .profile進入菜單。 編輯完成后，按ctrl-X，然后按“返回”返回主菜單，可以這么說。 祝好運！