關於osx和寶石問題的邊緣導軌問題

Question

請問如何解決這個問題。我已經安裝了護欄上完美作業邊緣與2.3.3應用和嘗試啓動服務器我已經升級到1.8.7我已經得到了之後（紅寶石1.8.6）

$ ruby script/server 
=> Booting Mongrel 
=> Rails 3.0.pre application starting on http://0.0.0.0:3000 
/Library/Ruby/Site/1.8/rubygems.rb:270:in `activate': You have a nil 
object when you didn't expect it! (NoMethodError) 
You might have expected an instance of Array. 
The error occurred while evaluating nil.map 
     from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:35:in 
`require' 
.......................... 

$ ruby script/server 
./script/../config/../vendor/rails/railties/lib/rails/ 
vendor_gem_source_index.rb:1:in `require': no such file to load -- 
rubygems (LoadError) 
     from ./script/../config/../vendor/rails/railties/lib/rails/ 
vendor_gem_source_index.rb:1 
     from ./script/../config/../vendor/rails/railties/lib/rails/ 
gem_dependency.rb:1:in `require' 
     from ./script/../config/../vendor/rails/railties/lib/rails/ 
gem_dependency.rb:1 
     from ./script/../config/../vendor/rails/railties/lib/initializer.rb: 
6:in `require' 
     from ./script/../config/../vendor/rails/railties/lib/initializer.rb:6 
     from ./script/../config/boot.rb:45:in `require' 
     from ./script/../config/boot.rb:45:in `load_initializer' 
     from ./script/../config/boot.rb:38:in `run' 
     from ./script/../config/boot.rb:11:in `boot!' 
     from ./script/../config/boot.rb:110 
     from script/server:2:in `require' 
     from script/server:2 

有什麼想法？

Answer 1

您是否檢查過您的RubyGems版本，它應該> 1.3.1？

如果是，請嘗試重新安裝。

最近很多人似乎都有同樣的問題。它似乎適用於那些已經使用MacPorts重新安裝了ruby，rubygems安裝的人。

Answer 2

聽起來好像沒有爲新版本的Ruby安裝寶石，或者您的路徑設置需要更新。

從http://rubygems.org/read/chapter/19#page98：

• 檢查正在運行的Ruby的安裝是安裝的RubyGems同一個。在unix系統上，哪個命令（或類型命令）將幫助解決這個問題。

• 確認當前正在運行的Ruby安裝確實已安裝了RubyGems庫。您應該在Ruby安裝的site_ruby/1.8目錄中找到「rubygems.rb」文件。

這些mixup在安裝Ruby的新實例後很容易發生，但是舊實例會在PATH列表中出現新的實例。

你是如何安裝新版本的Ruby，並且PATH環境變量被正確調整的（echo $PATH）？

推測當你運行which gem和which ruby時，他們指向新的1.8.7位置？ ruby -v和gem -v將證實這一點。