我正在使用Windows 8和cygwin。我正在尝试配置Omega4 Drupal主题。
我有ruby版本1.9.3p547（2014-05-14修订版45962）[x86_64-cygwin]
我已经从https://rubygems.org/安装了ruby gems版本2.4.1，如运行gem -v命令时所示：
$ gem -v
2.4.1
我在文件夹c：\ xampp \ htdocs \ drupal中安装了Drupal，cygwin可以通过cygdrive访问。
我导航到我的subtheme的文件夹，然后像这样运行命令：
$ drush omega-guard
which: no tput in (/home/prem/.rvm/gems/ruby-1.9.3-p547@omega.furniure/bin:/home/ prem/.rvm/gems/ruby-1.9.3-p547@global/bin:/home/prem/.rvm/rubies/ruby-1.9.3-p547 /bin:/home/prem/.rvm/bin:/usr/local/bin:/usr/bin:/cygdrive/c/Program Files (x86)/Intel/iCLS Client:/cygdrive/c/Program Files/Intel/iCLS Client:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Program Files (x86)/Intel/OpenCL SDK/3.0/bin/x86:/cygdrive/c/Program Files (x86)/Intel/OpenCL SDK/3.0/bin/x64:/cygdrive/c/Program Files/Intel/Intel(R) Management Engine Components/DAL:/cygdrive/c/Program Files/Intel/Intel(R) Management Engine Components/IPT:/cygdrive/c/Program Files (x86)/Intel/Intel(R) Management Engine Components/DAL:/cygdrive/c/Program Files (x86)/Intel/Intel(R) Management Engine Components/IPT:/cygdrive/c/Program Files/Java/jre7/bin:/cygdrive/c/Ruby200-x64/bin:/cygdrive/c/Ruby193/bin: /cygdrive/c/ProgramData/Drush:/cygdrive/c/Program Files (x86)/Drush/GnuWin32/bin:/cygdrive/c/Program Files (x86)/Drush/Php:/cygdrive/c/Program Files (x86)/Drush/cwRsync/bin:/cygdrive/c/xampp/php)
Which theme do you want to run Guard for?
[0] : Cancel
[1] : furniure (Subtheme of Omega) - Please provide a description for your
theme.
[2] : Ohm (Subtheme of Omega) - Omega based demonstration theme. Serves as a
best-practice reference for the Omega documentation. Ohm will be
constantly updated as best practice evolves so shouldn't be used in
production.
[3] : Omega - A powerful HTML5 base theme framework utilizing tools like
Sass, Compass, Grunt, Bower, Ruby Version Manager, Bundler and more.
1
There was a problem with your setup: [error]
Resolving dependencies...
Bundler can't satisfy your Gemfile's dependencies.
Install missing gems with `bundle install`.
然而，当我运行以下命令时，我遇到了一个我不明白的错误：
$ bundle install
Fetching gem metadata from https://rubygems.org/..........
Fetching additional metadata from https://rubygems.org/..
Resolving dependencies...
Using addressable 2.3.6
TypeError: can't convert nil into String
An error occurred while installing sass (3.4.1), and Bundler cannot continue.
Make sure that `gem install sass -v '3.4.1'` succeeds before bundling.
$ gem install sass -v 3.4.1
ERROR: While executing gem ... (TypeError)
can't convert nil into String
所以我的问题是关于上述错误While executing gem ... (TypeError) can't convert nil into String：我该如何解决此错误？