When i run command vagrant plugin install vagrant-vbguest i get bellow error
nstalling the 'vagrant-vbguest' plugin. This can take a few minutes... /usr/lib/ruby/2.3.0/rubygems/specification.rb:949:inall=': undefined method group_by' for nil:NilClass (NoMethodError) from /usr/lib/ruby/vendor_ruby/vagrant/bundler.rb:275:inwith_isolated_gem'
from /usr/lib/ruby/vendor_ruby/vagrant/bundler.rb:231:in internal_install' from /usr/lib/ruby/vendor_ruby/vagrant/bundler.rb:102:ininstall'
from /usr/lib/ruby/vendor_ruby/vagrant/plugin/manager.rb:62:in block in install_plugin' from /usr/lib/ruby/vendor_ruby/vagrant/plugin/manager.rb:72:ininstall_plugin'
from /usr/share/vagrant/plugins/commands/plugin/action/install_gem.rb:37:in call' from /usr/lib/ruby/vendor_ruby/vagrant/action/warden.rb:34:incall'
from /usr/lib/ruby/vendor_ruby/vagrant/action/builder.rb:116:in call' from /usr/lib/ruby/vendor_ruby/vagrant/action/runner.rb:66:inblock in run'
from /usr/lib/ruby/vendor_ruby/vagrant/util/busy.rb:19:in busy' from /usr/lib/ruby/vendor_ruby/vagrant/action/runner.rb:66:inrun'
from /usr/share/vagrant/plugins/commands/plugin/command/base.rb:14:in action' from /usr/share/vagrant/plugins/commands/plugin/command/install.rb:32:inblock in execute'
from /usr/share/vagrant/plugins/commands/plugin/command/install.rb:31:in each' from /usr/share/vagrant/plugins/commands/plugin/command/install.rb:31:inexecute'
from /usr/share/vagrant/plugins/commands/plugin/command/root.rb:56:in execute' from /usr/lib/ruby/vendor_ruby/vagrant/cli.rb:42:inexecute'
from /usr/lib/ruby/vendor_ruby/vagrant/environment.rb:268:in cli' from /usr/bin/vagrant:173:in'
`
my ubuntu is 16.4 and vagrant is 1.8.1 and ruby is 2.3.0
When i run command vagrant plugin install vagrant-vbguest i get bellow error'
`
my ubuntu is 16.4 and vagrant is 1.8.1 and ruby is 2.3.0
nstalling the 'vagrant-vbguest' plugin. This can take a few minutes... /usr/lib/ruby/2.3.0/rubygems/specification.rb:949:in
all=': undefined methodgroup_by' for nil:NilClass (NoMethodError) from /usr/lib/ruby/vendor_ruby/vagrant/bundler.rb:275:in
with_isolated_gem' from /usr/lib/ruby/vendor_ruby/vagrant/bundler.rb:231:ininternal_install' from /usr/lib/ruby/vendor_ruby/vagrant/bundler.rb:102:in
install' from /usr/lib/ruby/vendor_ruby/vagrant/plugin/manager.rb:62:inblock in install_plugin' from /usr/lib/ruby/vendor_ruby/vagrant/plugin/manager.rb:72:in
install_plugin' from /usr/share/vagrant/plugins/commands/plugin/action/install_gem.rb:37:incall' from /usr/lib/ruby/vendor_ruby/vagrant/action/warden.rb:34:in
call' from /usr/lib/ruby/vendor_ruby/vagrant/action/builder.rb:116:incall' from /usr/lib/ruby/vendor_ruby/vagrant/action/runner.rb:66:in
block in run' from /usr/lib/ruby/vendor_ruby/vagrant/util/busy.rb:19:inbusy' from /usr/lib/ruby/vendor_ruby/vagrant/action/runner.rb:66:in
run' from /usr/share/vagrant/plugins/commands/plugin/command/base.rb:14:inaction' from /usr/share/vagrant/plugins/commands/plugin/command/install.rb:32:in
block in execute' from /usr/share/vagrant/plugins/commands/plugin/command/install.rb:31:ineach' from /usr/share/vagrant/plugins/commands/plugin/command/install.rb:31:in
execute' from /usr/share/vagrant/plugins/commands/plugin/command/root.rb:56:inexecute' from /usr/lib/ruby/vendor_ruby/vagrant/cli.rb:42:in
execute' from /usr/lib/ruby/vendor_ruby/vagrant/environment.rb:268:incli' from /usr/bin/vagrant:173:in