首先，我按照这些方法在ubuntu上安装了wpscan
apt-get install git
sudo apt-get install libcurl4-openssl-dev libxml2 libxml2-dev libxslt1-dev ruby-dev build-essential libgmp-dev zlib1g-dev
git clone https://github.com/wpscanteam/wpscan.git
cd wpscan
sudo gem install bundler && bundle install --without test development
然后当我通过输入ruby wpscan.rb来运行它 它说
Could not find ffi-1.9.18 in any of the sources
Run `bundle install` to install missing gems.
当我运行bundle install时，我得到了那个输出
extconf failed, exit code 1
Gem files will remain installed in /var/lib/gems/2.4.0/gems/ffi-1.9.18 for
inspection.
Results logged to
/var/lib/gems/2.4.0/extensions/x86_64-linux/2.4.0/ffi-1.9.18/gem_make.out
An error occurred while installing ffi (1.9.18), and Bundler cannot
continue.
Make sure that `gem install ffi -v '1.9.18'` succeeds before bundling.
In Gemfile:
typhoeus was resolved to 1.3.0, which depends on
ethon was resolved to 0.10.1, which depends on
帮助将不胜感激，谢谢