安装Capybara-webkit时出错

Question

我正在尝试安装capybara-webkit gem，并在OSX10.9.4中获得以下错误：

➜  hours git:(development) gem install capybara-webkit -v '1.2.0' 
Building native extensions.  This could take a while...
ERROR:  Error installing capybara-webkit:
ERROR: Failed to build gem native extension.

/Users/macbook/.rvm/rubies/ruby-2.1.2/bin/ruby extconf.rb
Command 'qmake -spec macx-g++ ' not available

Makefile not found

Gem files will remain installed in /Users/macbook/.rvm/gems/ruby-2.1.2/gems/capybara-webkit-1.2.0 for inspection.
Results logged to /Users/macbook/.rvm/gems/ruby-2.1.2/extensions/x86_64-darwin-13/2.1.0-static/capybara-webkit-1.2.0/gem_make.out

因此，研究这个问题的解决方案似乎是运行"brew安装qt“。当我运行它时，我得到以下信息：

➜  hours git:(development) brew install qt 
Warning: It appears you have MacPorts or Fink installed.
Software installed with other package managers causes known problems for
Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again.
==> Downloading http://download.qt-project.org/official_releases/qt/4.8/4.8.5/qt-everywhere-open

curl: (22) The requested URL returned error: 404 Not Found
Error: Download failed: http://download.qt-project.org/official_releases/qt/4.8/4.8.5/qt-everywhere-opensource-src-4.8.5.tar.gz 

我检查过了，在我的Imac上任何地方都找不到MacPorts或Fink。

我在这里错过了什么？

Answer 1

自4月份以来，国产啤酒的qt为4.8.6。请brew update && brew upgrade，再试一次brew install qt。