Problems with different versions and vagrant up

Hi I have been hitting this error below whilst trying to install virtual box etc.

It's already told me to install an older version so i took VM and the update back to version 4.3.0....... This is also after un-installing and re-installing everything. it's getting a little messy now.......

thanks and happy easter island sunday everyone (the day we remember the monumentally stupid and overly large projects we have started)

Neil P.

C:\Users...\treehouse>vagrant up Bringing machine 'default' up with 'virtualbox' provider... ==> default: Importing base box 'treehouse-rails4'... C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/plugins/providers/virtualb ox/driver/version_4_3.rb:175:in import': undefined method[]' for nil:NilClass (NoMethodError) from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/plugins/provi ders/virtualbox/action/import.rb:15:in call' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:34:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/plugins/provi ders/virtualbox/action/customize.rb:40:in call' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:34:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/plugins/provi ders/virtualbox/action/check_accessible.rb:18:in call' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:34:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:95:in block in finalize_action' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:34:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:34:in call' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/builder.rb:116:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/runner.rb:69:in block in run' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/u til/busy.rb:19:inbusy' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/runner.rb:69:in run' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/builtin/call.rb:51:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:34:in call' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/builtin/config_validate.rb:25:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:34:in call' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/builtin/call.rb:57:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:34:in call' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/plugins/provi ders/virtualbox/action/check_virtualbox.rb:17:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/warden.rb:34:in call' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/builder.rb:116:incall' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/runner.rb:69:in block in run' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/u til/busy.rb:19:inbusy' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/a ction/runner.rb:69:in run' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/m achine.rb:157:inaction' from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.5.3/lib/vagrant/b atch_action.rb:72:in `block (2 levels) in run'