ruby-on-rails - 获取最新的 Ruby 版本

Question

我目前在尝试使用 RVM 安装最新的 Ruby 版本时遇到了一些问题。使用 rvm install ruby​​-2.2.0

时出现以下错误

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.

然后我运行 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 获得稳定命令并向我显示此警告，但我仍然没有获得稳定版本

* WARNING: You have '~/.profile' file, you might want to load it,
to do that add the following line to '/Users/user/.bash_profile':

  source ~/.profile

我该如何解决这个问题？我已经避开它一段时间了，真的很想启动并运行它。提前致谢

Answer 1

你需要做的:

cd /usr/local/Library
git pull origin master

这将升级您的 Homebrew 软件，您可以再次使用 brew。

如果您遇到权限问题，请尝试:

sudo git pull origin master

对于优胜美地，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

Mac OS X 10.10 (Yosemite) 不再附带 Ruby 1.8(仅 2.0) 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，然后添加下一句:

source ~/.profile