获取最新的Ruby版本

Question

当我尝试使用RVM安装最新的Ruby版本时，我正遇到一些问题。我使用rvm install ruby-2.2.0

user$ rvm install ruby-2.2.0 
Searching for binary rubies, this might take some time. 
No binary rubies available for: osx/10.10/x86_64/ruby-2.2.0. 
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies. 
Checking requirements for osx. 
/usr/local/bin/brew: /usr/local/Library/brew.rb: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad interpreter: No such file or directory 
/usr/local/bin/brew: line 21: /usr/local/Library/brew.rb: Undefined error: 0 
ERROR: '/bin' is not writable - it is required for Homebrew, try 'brew doctor' to fix it! 
Requirements installation failed with status: 1. 

我然后运行brew doctor并得到以下错误

/usr/local/bin/brew: /usr/local/Library/brew.rb: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad interpreter: No such file or directory 
/usr/local/bin/brew: line 21: /usr/local/Library/brew.rb: Undefined error: 0 

RVM得到稳定的吩咐呈现给我这个警告，我还从来没有得到稳定的版本时，收到以下错误

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我该如何解决这个问题？我一直在避开它，并且真的想让它启动并运行。提前

Answer 1

感谢你需要做的：

cd /usr/local/Library 
git pull origin master 

这将升级你的自制软件，你可以再次使用BREW。

如果您有权限的问题，请尝试：

sudo git pull origin master 

对于约塞米蒂试试这个：

cd /System/Library/Frameworks/Ruby.framework/Versions 
sudo ln -s Current 1.8 
brew update 
sudo rm 1.8 

对于OS X 10.8.3试试这个：

sudo chown -R $USER:admin /usr/local 
cd /usr/local 
git reset --hard origin/master 
brew update 

的Mac OS X 10.10（Yosemite）不再附带Ruby 1.8（仅限2.0） 使用git更新brew：

cd /usr/local/Library/ 
git branch --set-upstream-to=origin/master master 
# on branch master 
git pull 

对于第二个问题，编辑/Users/user/.bash_profile，再加入下句：

source ~/.profile