error during vagrant

[rl4518]

$ vagrant --version
Vagrant 2.1.2

running on windows 7

RL4518@CAESIQBAR09 MINGW64 /c/projects/vargant-openstack (master)
$ vagrant up
C:/projects/vargant-openstack/Vagrantfile:29:in block in <top (required)>': [-] ERROR: Please add vagrant-hostmanager plugin: vagrant plugin install vagrant-hostmanager (RuntimeError) from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/v2/loader.rb:37:in load'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:126:in block (2 levels) in load' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:119:in each'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:119:in block in load' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:116:in each'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:116:in load' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/vagrantfile.rb:28:in initialize'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:777:in new' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:777:in vagrantfile'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:523:in host' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:191:in block in action_runner'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/action/runner.rb:33:in run' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:510:in hook'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:759:in unload' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/bin/vagrant:164:in ensure in

'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/bin/vagrant:164:in `'

RL4518@CAESIQBAR09 MINGW64 /c/projects/vargant-openstack (master)
$ ^C

RL4518@CAESIQBAR09 MINGW64 /c/projects/vargant-openstack (master)
$ vagrant plugin install vagrant-hostmanager
C:/projects/vargant-openstack/Vagrantfile:29:in block in <top (required)>': [-] ERROR: Please add vagrant-hostmanager plugin: vagrant plugin install vagrant-hostmanager (RuntimeError) from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/v2/loader.rb:37:in load'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:126:in block (2 levels) in load' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:119:in each'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:119:in block in load' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:116:in each'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/config/loader.rb:116:in load' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/vagrantfile.rb:28:in initialize'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:777:in new' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:777:in vagrantfile'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:523:in host' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:191:in block in action_runner'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/action/runner.rb:33:in run' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:510:in hook'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/lib/vagrant/environment.rb:759:in unload' from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/bin/vagrant:164:in ensure in

'
from C:/Projects/vagrant/embedded/gems/2.1.2/gems/vagrant-2.1.2/bin/vagrant:164:in `'