$ vagrant
C:/HashiCorp/Vagrant/embedded/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb :54:in `require': cannot load such file -- vagrant-share/helper/api (LoadError)
from C:/HashiCorp/Vagrant/embedded/lib/ruby/2.2.0/rubygems/core_ext/kern el_require.rb:54:in `require'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-share-1.1.7/lib/vag rant-share/activate.rb:244:in `<encoded>'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-share-1.1.7/lib/vag rant-share/activate.rb:16:in `RGLoader_load'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-share-1.1.7/lib/vag rant-share/activate.rb:16:in `<top (required)>'
from C:/HashiCorp/Vagrant/embedded/lib/ruby/2.2.0/rubygems/core_ext/kern el_require.rb:54:in `require'
from C:/HashiCorp/Vagrant/embedded/lib/ruby/2.2.0/rubygems/core_ext/kern el_require.rb:54:in `require'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-share-1.1.7/lib/vag rant-share.rb:23:in `block in <class:Plugin>'
from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.9.4/lib/vagrant/c