Question

在我使用El Capitan的MacMini上，我无法再使用brew。我收到以下错误：

/usr/local/Library/Homebrew/config.rb:34:in `initialize': no implicit conversion of nil into String (TypeError)
    from /usr/local/Library/Homebrew/config.rb:34:in `new'
    from /usr/local/Library/Homebrew/config.rb:34:in `<top (required)>'
    from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /usr/local/Library/Homebrew/global.rb:18:in `<top (required)>'
    from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /usr/local/Library/brew.rb:10:in `<main>'

/ usr / local的权限是正确的。

我没有改变的config.rb文件如下所示：

def cache
  if ENV["HOMEBREW_CACHE"]
    Pathname.new(ENV["HOMEBREW_CACHE"]).expand_path
  else
    # we do this for historic reasons, however the cache *should* be the same
    # directory whichever user is used and whatever instance of brew is executed
    home_cache = Pathname.new("~/Library/Caches/Homebrew").expand_path
    if home_cache.directory? && home_cache.writable_real?
      home_cache
    else
      Pathname.new("/Library/Caches/Homebrew").extend Module.new {
        def mkpath
          unless exist?
            super
            chmod 0775
          end
        end
      }
    end
  end
end

HOMEBREW_CACHE = cache
undef cache

# Where brews installed via URL are cached
HOMEBREW_CACHE_FORMULA = HOMEBREW_CACHE+"Formula"

unless defined? HOMEBREW_BREW_FILE
  HOMEBREW_BREW_FILE = ENV["HOMEBREW_BREW_FILE"] || which("brew").to_s
end

# Where we link under
HOMEBREW_PREFIX = Pathname.new(ENV["HOMEBREW_PREFIX"])

# Where .git is found
HOMEBREW_REPOSITORY = Pathname.new(ENV["HOMEBREW_REPOSITORY"])

HOMEBREW_LIBRARY = Pathname.new(ENV["HOMEBREW_LIBRARY"])
HOMEBREW_CONTRIB = HOMEBREW_REPOSITORY/"Library/Contributions"

# Where we store built products
HOMEBREW_CELLAR = Pathname.new(ENV["HOMEBREW_CELLAR"])

HOMEBREW_LOGS = Pathname.new(ENV["HOMEBREW_LOGS"] || "~/Library/Logs/Homebrew/").expand_path

HOMEBREW_TEMP = Pathname.new(ENV.fetch("HOMEBREW_TEMP", "/tmp"))

unless defined? HOMEBREW_LIBRARY_PATH
  HOMEBREW_LIBRARY_PATH = Pathname.new(__FILE__).realpath.parent.join("Homebrew")
end

HOMEBREW_LOAD_PATH = HOMEBREW_LIBRARY_PATH

brew，brew doctor，brew update等发生同样的错误。

任何想法，可能出现什么问题？

Answer 1

我有同样的问题 - 似乎是由于权限问题无法完成的brew更新的结果。

首先我将回购重置为最新的头：

cd /usr/local/bin
git reset --hard HEAD

然后我可以跑：

brew doctor

找到权限问题。根据说明修复这些权限最终允许我运行：

brew update

Answer 2

OS X会在每次更新时都会破坏权限。

试试这个：

sudo chown -R $(whoami) /usr/local/share/man/man1

和

sudo chown -R $(whoami) /usr/local/share/man

并确保当前用户（正在运行brew的用户）有权访问/usr/local。

Answer 3

我将脚本/ usr / local / bin / brew替换为我在github上找到的新版本。现在一切都很好了。

最新文件，可在此处找到： https://github.com/Homebrew/homebrew/blob/master/bin/brew

Answer 4

有点脏，但我刚刚卸载自制软件并重新安装。警告：这将卸载所有brew安装的软件包。

$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
$ sudo chown -R $USER /usr/local/
$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Answer 5

我将脚本/ usr / local / bin / brew替换为我在github上找到的新版本。现在一切都很好。

最新文件，可在此处找到：https://github.com/Homebrew/homebrew/blob/master/bin/brew

Answer 6

对我有用的是运行brew upgrade（而不是brew update）。您可能会遇到其他一些答案中提到的某些权限问题。它将建议一些命令来解决此问题。

解决权限问题后，运行brew upgrade解决了该问题。在更新操作系统时，这显然不是一个罕见的问题-在official Homebrew Documenation上了解它。

Homebrew将不再酿造

6 个答案: