Cannot Install gem ffi - Windows 7 64bit

问题

I am new to learning Cucumber/Ruby.

I have tried to install the gem 'ffi' however when I do so from the console I get the following message:

Error installing ffi: The last version of ffi (>= 0) to support your Ruby & RubyGems nstalling it with gem install ffi -v 1.9.18 ffi requires Ruby version < 2.5, >= 2.0. The current ruby version 2.5.0.

回答1:

There is an open pull request to update ffi for Ruby 2.5. You will need to wait for this update, roll back to ruby Ruby <= 2.4.x, or try to install the branch from that pull request.

回答2:

After a long research I finally found an answer that worked for me :)

gem install ffi -f

来源：https://stackoverflow.com/questions/48171022/cannot-install-gem-ffi-windows-7-64bit