Question

我在Mac上并试图找出如何将我的ruby从2.1.1升级到2.1.7。

我不断收到我无法弄清楚的错误。

当我试图弄清楚Homebrew是否在我的Mac上时，我试试：

which brew

这给出了：

/usr/local/bin/brew

然后我尝试： MJ-2：〜m $ brew医生

我得到了：

/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 23: /usr/local/Library/brew.rb: Undefined error: 0
MJ-2:~ m$

我尝试使用rvm升级为：

rvm install ruby 2.1.7

我得到了：

Warning! PATH is not properly set up, '/Users/m/.rvm/gems/ruby-2.0.0-p247/bin' is not at first place,
         usually this is caused by shell initialization files - check them for 'PATH=...' entries,
         it might also help to re-add RVM to your dotfiles: 'rvm get stable --auto-dotfiles',
         to fix temporarily in this shell session run: 'rvm use ruby-2.0.0-p247'.
Searching for binary rubies, this might take some time.
No binary rubies available for: osx/10.10/x86_64/ruby-2.1.7.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for osx_brew.
/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 23: /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.

然后我尝试：

rvm get stable --auto-dotfiles

我得到了一大堆错误，主要是说：

scripts/functions/support: Can't unlink already-existing object

结束时：

tar: Error exit delayed from previous errors.
Could not extract RVM sources.
Could not update RVM, get some help at #rvm IRC channel at freenode servers.

我无法理解什么是错的。似乎HomeBrew不再在我的Mac上了，或者至少它在我的mac上无法识别（虽然哪个brew有文件路径）并且我似乎也无法使用rvm install命令。

如何在Mac上从终端升级我的ruby版本？

Answer 1

尝试以下解决步骤，它对我有用。

首先检查/ usr / local目录的所有者。它应该由您的用户名拥有。如果没有运行以下命令。
```
$ sudo chown -R `whoami` /usr/local
```

重置您的Homebrew HEAD

$ cd /usr/local
$ git reset --hard FETCH_HEAD

现在更新并升级您的啤酒。
```
$ brew update && brew upgrade
```
执行此命令后，您的brew安装已修复，您应该可以使用brew安装新的包。
此后可能还有一个挑战。某些运行良好的软件包可能会出错。你会得到“dyld：Library not loaded：”错误。这意味着缺少该安装的依赖性或需要升级。您需要安装缺少的软件包并重新安装软件包。

示例错误和修复：

    $ ruby -v
     dyld: Library not loaded: /usr/local/lib/libgmp.10.dylib
     Referenced from: /Users/claretrembath/.rvm/rubies/ruby-2.1.3/bin/ruby
     Reason: image not found
     Trace/BPT trap: 5

错误说，无法加载“libgmp”。你可以在brew中找到和libgmp包并安装它。下面的命令应该解决问题。

    $ brew install gmp && rvm reinstall 2.1.7

RVM升级ruby 2.1.7

1 个答案: