% ./vagrant plugin install vagrant-vbguest

» Running plugin install... 
  Installing the 'vagrant-vbguest' plugin. This can take a few minutes...
Installed the plugin 'vagrant-vbguest (0.30.0)'!
(vagrant-agogo) sophia@x86_64-apple-darwin13 [13:39:26] [~/project/vagrant-ruby] [main]
-> % ./vagrant plugin list

» Running plugin list... 
  vagrant-vbguest (0.30.0, global)
(vagrant-agogo) sophia@x86_64-apple-darwin13 [13:41:55] [~/project/vagrant-ruby] [main]
-> % ./vagrant plugin uninstall vagrant-vbguest

» Running plugin uninstall... 
  Uninstalling the 'vagrant-vbguest' plugin...
! Running of task plugin uninstall failed unexpectedly
  
! Error: rpc error: code = Unknown desc = No such file or directory @ rb_check_realpath_internal - /Users/sophia/Library/Application
Support/vagrant/default/project/vagrant-ruby/plugins/gems/2.7.2
  /Users/sophia/project/vagrant-ruby/lib/vagrant/bundler.rb:441:in `realpath'
  /Users/sophia/project/vagrant-ruby/lib/vagrant/bundler.rb:441:in `realpath'
  /Users/sophia/project/vagrant-ruby/lib/vagrant/bundler.rb:441:in `block in clean'
  /Users/sophia/project/vagrant-ruby/lib/vagrant/bundler.rb:440:in `delete_if'
  /Users/sophia/project/vagrant-ruby/lib/vagrant/bundler.rb:440:in `clean'
  /Users/sophia/project/vagrant-ruby/lib/vagrant/plugin/manager.rb:229:in `uninstall_plugin'
  /Users/sophia/project/vagrant-ruby/plugins/commands/plugin/action/uninstall_plugin.rb:18:in `call'
  /Users/sophia/project/vagrant-ruby/lib/vagrant/action/warden.rb:48:in `call'
  /Users/sophia/project/vagrant-ruby/plugins/commands/plugin/action/plugin_exists_check.rb:20:in `call'
  /Users/sophia/project/vagrant-ruby/lib/vagrant/action/warden.rb:48:in `call'
  /Users/sophia/project/vagrant-ruby/lib/vagrant/action/builder.rb:180:in `call'
  /Users/sophia/project/vagrant-ruby/lib/vagrant/action/runner.rb:101:in `block in run'
  /Users/sophia/project/vagr...