在OSX上安裝Mysql gem錯誤 - 'Marshal data too short'

Question

嘗試在OSX上安裝mysql gem時出現'marshal data too short'錯誤。扯開我聽說過建議清除.gems，但似乎無法找到它在系統上。誰能提供幫助？

apple$ sudo gem install mysql --backtrace --debug 
Exception `NameError' at /Library/Ruby/Site/1.8/rubygems/command_manager.rb:161 - uninitialized constant Gem::Commands::InstallCommand 
Exception `Gem::LoadError' at /Library/Ruby/Site/1.8/rubygems.rb:826 - Could not find RubyGem test-unit (>= 0) 

Exception `ArgumentError' at /Library/Ruby/Site/1.8/rubygems/spec_fetcher.rb:111 - marshal data too short 
ERROR: While executing gem ... (ArgumentError) 
    marshal data too short 
    /Library/Ruby/Site/1.8/rubygems/spec_fetcher.rb:111:in `load' 
    /Library/Ruby/Site/1.8/rubygems/spec_fetcher.rb:111:in `fetch_spec' 
    /Library/Ruby/Site/1.8/rubygems/spec_fetcher.rb:71:in `fetch' 
    /Library/Ruby/Site/1.8/rubygems/spec_fetcher.rb:70:in `map' 
    /Library/Ruby/Site/1.8/rubygems/spec_fetcher.rb:70:in `fetch' 
    /Library/Ruby/Site/1.8/rubygems/dependency_installer.rb:99:in `find_gems_with_sources' 
    /Library/Ruby/Site/1.8/rubygems/dependency_installer.rb:192:in `find_spec_by_name_and_version' 
    /Library/Ruby/Site/1.8/rubygems/dependency_installer.rb:213:in `install' 
    /Library/Ruby/Site/1.8/rubygems/commands/install_command.rb:118:in `execute' 
    /Library/Ruby/Site/1.8/rubygems/commands/install_command.rb:115:in `each' 
    /Library/Ruby/Site/1.8/rubygems/commands/install_command.rb:115:in `execute' 
    /Library/Ruby/Site/1.8/rubygems/command.rb:257:in `invoke' 
    /Library/Ruby/Site/1.8/rubygems/command_manager.rb:132:in `process_args' 
    /Library/Ruby/Site/1.8/rubygems/command_manager.rb:102:in `run' 
    /Library/Ruby/Site/1.8/rubygems/gem_runner.rb:58:in `run' 
    /usr/bin/gem:21 

Answer 1

我在我的Windows機器上得到了同樣的錯誤，如果我會使用寶石。

ERROR: While executing gem ... (ArgumentError)  
marshal data too short 

刪除gem緩存目錄「c：\ Documents and Settings \ MyUser \ .gem」爲我工作。 即使您重新安裝紅寶石，似乎仍保存了一些數據。緩存的文件可能已損壞。

Answer 2

嘗試使用以下命令。提供OS X中mysql目錄的位置。

須藤寶石安裝mysql - --with-mysql的-DIR =在/ usr /本地/ MySQL的

http://hivelogic.com/articles/installing-mysql-on-mac-os-x/

檢查鏈接，在Mac OSX上安裝MySQL如果你沒有正確安裝。

祝你好運！

Answer 3

此外，.gem目錄位於你的主目錄：/Users/yourname/.gem

希望有所幫助。