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virtualboxhomebrewhomebrew-cask

brew cask uninstall --force virtual box gives Error: undefined method `<=' for nil:NilClass

On OSX El Captain 10.11.6, I have 

$ VirtualBox --help
Oracle VM VirtualBox Manager 5.0.16

I'm trying to uninstall virtual box but getting following ...

brew cask uninstall --force virtualbox
Error: undefined method `<=' for nil:NilClass
Did you mean?  <=>
Follow the instructions here:
  https://github.com/caskroom/homebrew-cask#reporting-bugs
/usr/local/Caskroom/virtualbox/.metadata/5.0.16-105871/20160414170649.906/Casks/virtualbox.rb:2:in `block in load'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cask.rb:23:in `instance_eval'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cask.rb:23:in `initialize'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cask_loader.rb:29:in `new'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cask_loader.rb:29:in `cask'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cask_loader.rb:65:in `cask'
/usr/local/Homebrew/Library/Homebrew/compat/hbc/cask_loader.rb:10:in `cask'
/usr/local/Caskroom/virtualbox/.metadata/5.0.16-105871/20160414170649.906/Casks/virtualbox.rb:1:in `load'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cask_loader.rb:55:in `instance_eval'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cask_loader.rb:55:in `load'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cask_loader.rb:168:in `load'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/uninstall.rb:19:in `block in run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/uninstall.rb:12:in `each'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/uninstall.rb:12:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli/abstract_command.rb:35:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:98:in `run_command'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:168:in `run'
/usr/local/Homebrew/Library/Homebrew/cask/lib/hbc/cli.rb:132:in `run'
/usr/local/Homebrew/Library/Homebrew/cmd/cask.rb:8:in `cask'
/usr/local/Homebrew/Library/Homebrew/brew.rb:100:in `<main>'

Here is first line of the file it is complaining about :

cat /usr/local/Caskroom/virtualbox/.metadata/5.0.16-105871/20160414170649.906/Casks/virtualbox.rb

cask 'virtualbox' do
  if MacOS.release <= :lion

Any ideas ?

Solution

  • open a terminal and run the following command

    brew update
brew cleanup

    remove all the packages with brew

    brew cask rm virtualbox --force
brew cask rm vagrant --force
brew cask rm vagrant-manager --force

    remove any existing packages that might have been missed

    rm -rf /Applications/Vagrant* /Applications/VirtualBox
sudo rm -f /usr/bin/vagrant /usr/local/bin/vagrant
sudo rm -rf /opt/vagrant /opt/homebrew-cask/Caskroom/va* /opt/homebrew-cask/Caskroom/virtualbox
rm -rf ~/.vagrant* ~/.docker ~/Virtual*
rm -rf /usr/local/Caskroom/virtualbox && rm -rf /Applications/VirtualBox.app/
sudo pkgutil --forget com.vagrant.vagrant

    UPDATE: if you wish to reinstall it run the following commands

    brew cleanup
brew update --rebase
brew upgrade --cleanup
brew install vagrant-completion --force
brew cask install virtualbox --force
brew cask install vagrant --force
brew cask install vagrant-manager --force
brew upgrade --cleanup
brew cleanup
brew doctor
sudo shutdown -r now