运行 heroku run rake db:migrate 3 时出错

Question

每当我运行 heroku run rake db:migrate 3 时，我都会得到

耙子中止！无法加载 WDM！

WDM is not supported on your system. For a cross-platform alternative,
we recommend using Listen: http://github.com/guard/listen

请任何人帮助我

Answer 1

@user2240307 将您的 Windows gem 放入您的 gemfile 中的平台组中。

#WINDOWS Gems That don't play well with nix
platforms :mswin do 
  gem "wdm", :group => [:development, :test]
end