NullPointerError on vagrant snap take

[vaughnkoch]

$ vagrant snap take
[default]
/Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/com/ffi/interface.rb:128:in `[]': invalid memory read at address=0x00000000000000 (FFI::NullPointerError)
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/com/ffi/interface.rb:128:in `initialize_vtbl'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/com/ffi/interface.rb:122:in `initialize'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/com/implementer/ffi.rb:27:in `new'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/com/implementer/ffi.rb:27:in `ffi_interface'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/com/implementer/ffi.rb:80:in `call_vtbl_function'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/com/implementer/ffi.rb:61:in `call_function'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/com/abstract_interface.rb:145:in `call_function'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/com/abstract_interface.rb:62:in `block in function'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/virtualbox-0.9.2/lib/virtualbox/vm.rb:201:in `find'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-snap-0.10/lib/vagrant_snap.rb:22:in `parse_tree'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-snap-0.10/lib/vagrant_snap.rb:222:in `block in take'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-snap-0.10/lib/vagrant_snap.rb:154:in `call'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-snap-0.10/lib/vagrant_snap.rb:154:in `block in safe_with_target_vms'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-1.0.5/lib/vagrant/command/base.rb:116:in `block in with_target_vms'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-1.0.5/lib/vagrant/command/base.rb:111:in `each'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-1.0.5/lib/vagrant/command/base.rb:111:in `with_target_vms'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-snap-0.10/lib/vagrant_snap.rb:148:in `safe_with_target_vms'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-snap-0.10/lib/vagrant_snap.rb:221:in `take'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-snap-0.10/lib/vagrant_snap.rb:131:in `execute'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-1.0.5/lib/vagrant/cli.rb:42:in `execute'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-1.0.5/lib/vagrant/environment.rb:167:in `cli'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/gems/vagrant-1.0.5/bin/vagrant:43:in `<top (required)>'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/bin/vagrant:19:in `load'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/bin/vagrant:19:in `<main>'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/bin/ruby_noexec_wrapper:14:in `eval'
  from /Users/vaughn/.rvm/gems/ruby-1.9.3-p194/bin/ruby_noexec_wrapper:14:in `<main>'


Gem versions:
vagrant (1.0.5)
vagrant-snap (0.10)
virtualbox (0.9.2)

[Achimh3011]

Same for me.

gem list v

*** LOCAL GEMS ***

vagrant (1.0.5, 1.0.2.dev, 0.9.99.2, 0.8.10)
vagrant-snap (0.10)
virtualbox (0.9.2)

[dergachev]

Yep, vagrant-snap seems incompatible with newest versions of Vagrant. (I get the same error with vagrant 1.0.6).

For now, there's a hacky but working alternative here: hashicorp/vagrant#143 (comment)