Cask update fails on BetterTouchTool installation

[nZac]

Error: undefined method `release' for OS::Mac:Module
Please report this bug:
    https://github.com/caskroom/homebrew-cask/issues
<main>:2:in `<class:Bettertouchtool>'
<main>:in `<main>'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/source/path_base.rb:72:in `eval'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/source/path_base.rb:72:in `rescue in load'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/source/path_base.rb:69:in `load'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/source/tapped.rb:33:in `load'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask.rb:78:in `load'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/cli/install.rb:19:in `block in install_casks'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/cli/install.rb:17:in `each'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/cli/install.rb:17:in `install_casks'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/cli/install.rb:6:in `run'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/cli.rb:81:in `run_command'
/usr/local/Cellar/brew-cask/0.49.0/rubylib/cask/cli.rb:121:in `process'
/usr/local/bin/brew-cask.rb:42:in `<top (required)>'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/usr/local/Library/brew.rb:59:in `require?'
/usr/local/Library/brew.rb:142:in `<main>'

$ brew cask doctor
==> OS X Version:
10.10.1
==> Hardware Architecture:
intel-64
==> Ruby Version:
2.0.0-p481
==> Ruby Path:
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
==> Homebrew Version:
0.9.5
==> Homebrew Executable Path:
/usr/local/bin/brew
==> Homebrew Cellar Path:
/usr/local/Cellar
==> Homebrew Repository Path:
/usr/local
==> Homebrew Origin:
https://github.com/Homebrew/homebrew
==> Homebrew-cask Version:
0.51.1
==> Homebrew-cask Install Location:
/usr/local/Cellar/brew-cask/0.49.0 (error: old version. Run "brew cleanup".)
==> Homebrew-cask Staging Location:
/opt/homebrew-cask/Caskroom
==> Homebrew-cask Cached Downloads:
/Library/Caches/Homebrew
/Library/Caches/Homebrew/Casks
0 files
0.00 megs
==> Homebrew-cask Default Tap Path:
/usr/local/Library/Taps/caskroom/homebrew-cask
==> Homebrew-cask Alternate Cask Taps:
<NONE>
==> Homebrew-cask Default Tap Cask Count:
2176
==> Contents of $LOAD_PATH:
/usr/local/Library/Taps/caskroom/homebrew-cask/lib (error: should be descendant of HOMEBREW_CELLAR)
/usr/local/Library/Taps/caskroom/homebrew-cask/lib/homebrew-fork/Library/Homebrew
/Library/Ruby/Site/2.0.0
/Library/Ruby/Site/2.0.0/x86_64-darwin14
/Library/Ruby/Site/2.0.0/universal-darwin14
/Library/Ruby/Site
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/vendor_ruby/2.0.0
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/vendor_ruby/2.0.0/x86_64-darwin14
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/vendor_ruby/2.0.0/universal-darwin14
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/vendor_ruby
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/x86_64-darwin14
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/universal-darwin14
==> Contents of $RUBYLIB Environment Variable:
<NONE>
==> Contents of $RUBYOPT Environment Variable:
<NONE>
==> Contents of $RUBYPATH Environment Variable:
<NONE>
==> Contents of $RBENV_VERSION Environment Variable:
<NONE>
==> Contents of $CHRUBY_VERSION Environment Variable:
<NONE>
==> Contents of $GEM_HOME Environment Variable:
<NONE>
==> Contents of $GEM_PATH Environment Variable:
<NONE>
==> Contents of $BUNDLE_PATH Environment Variable:
<NONE>
==> Contents of $PATH Environment Variable:
PATH="./bin:/usr/local/bin:/usr/local/sbin:/Users/nzac/.dotfiles/bin:/Users/nzac/.rbenv/shims:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:./bin:/usr/local/sbin:/Users/nzac/.dotfiles/bin:/Users/nzac/.rbenv/shims:/Users/nzac/.pyenv/shims:/usr/local/Library/ENV/scm"
==> Contents of $SHELL Environment Variable:
SHELL="/bin/zsh"
==> Contents of Locale Environment Variables:
LANG="en_US.UTF-8"
==> Running As Privileged User:
No

I did run brew cleanup and that didn't help, not sure what the other error means.

Let me know if I can help you help me.

[vitorgalvao]

You’re using an old version of homebrew-cask. Please brew update && brew upgrade brew-cask && brew cleanup && brew cask cleanup and try again.

[nZac]

Thanks for the quick response @vitorgalvao. Sorry that I missed that suggestion in the README. I had read through the CONTRIBUTING file and didn't see anything in there.

Would you be willing to accept a pull request if I submitted one to have that suggestion in the CONTRIBUTING guide as well so that it pops up before you submit an issue?

[vitorgalvao]

Hopefully that won’t become a necessity, in the future.

That said, I have been thinking for quite a while about adding that line there, and it wouldn’t hurt, so yes, please do open the PR for discussion.