Homebrew error occurred when I command “brew cask

Question

I'm trying to install virtual box with brew-cask, but That returns this kind of error and I cannot install virtualbox. I use MacOSX Lion 10.7.5 and homebrew 0.9.5, ruby 2.1.0-p0

I've described the process in Terminal below.

First of all, brew tap command is succeeded.

    $ brew tap phinze/cask
    Cloning into '/usr/local/Library/Taps/phinze/homebrew-cask'...
    remote: Reusing existing pack: 32538, done.
    remote: Counting objects: 36, done.
    remote: Compressing objects: 100% (36/36), done.
    remote: Total 32574 (delta 16), reused 2 (delta 0)
    Receiving objects: 100% (32574/32574), 11.72 MiB | 379 KiB/s, done.
    Resolving deltas: 100% (19138/19138), done.
    Tapped 1 formula
    It looks like you tapped a private repository. To avoid entering your
    credentials each time you update, you can use git HTTP credential caching
    or issue the following command:

      cd /usr/local/Library/Taps/phinze/homebrew-cask
      git remote set-url origin [e-mail]:phinze/homebrew-cask.git

Second, I've already installed brew-cask as below

    $ brew install brew-cask
    Warning: brew-cask-0.35.0 already installed

Third, when I tried to install virtualbox, but it returns this kind of error, and I cannot get install the Virtualbox.

    $ brew cask install virtualbox
    ==> Removing legacy Tap
    Error: No available cask for virtualbox

Answer 1

At first, I got the "multiple taps" error:

~ $ brew install brew-cask
Error: Formulae found in multiple taps:
 * caskroom/cask/brew-cask
 * phinze/cask/brew-cask

Then, I included the full (caskroom) path to brew-cask and it worked:

 brew install caskroom/cask/brew-cask
 brew cask install virtualbox

Answer 2

brew tap caskroom/cask
brew install brew-cask
brew cask install virtualbox

Worked for me.

Answer 3

brew install caskroom/cask/brew-cask
brew install homebrew/completions/brew-cask-completion

That worked for me

Answer 4

The homebrew-cask repository has moved. Did you try:

brew tap caskroom/cask
brew install brew-cask
brew cask install virtualbox

instead of phinz?

Update:

As Jon Nalley points out, brew install brew-cask is now deprecated:

Important December 2015 update: Homebrew-Cask will now be kept up to date together with Homebrew (see #15381 for details). If you haven’t yet, run brew uninstall --force brew-cask; brew update to switch to the new system.