Cask command asked me to report an issue

[lahwran]

lahwran@lahwran:~$ brew cask uninstall clementine
Error: wrong number of arguments (1 for 0) while loading '/usr/local/Library/Taps/caskroom/homebrew-cask/Casks/clementine.rb'
Please report this bug:
    https://github.com/caskroom/homebrew-cask/issues
<main>:8:in `name'
<main>:8:in `<class:Clementine>'
<main>:in `<main>'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/source/path_base.rb:55:in `eval'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/source/path_base.rb:55:in `rescue in load'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/source/path_base.rb:52:in `load'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/source/tapped.rb:28:in `load'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask.rb:124:in `load'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/cli/uninstall.rb:8:in `block in run'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/cli/uninstall.rb:6:in `each'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/cli/uninstall.rb:6:in `run'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/cli.rb:81:in `run_command'
/usr/local/Cellar/brew-cask/0.45.0/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:58:in `require?'
/usr/local/Library/brew.rb:141:in `<main>'
lahwran@lahwran:~$ brew cask update
Updated Homebrew from 507aee20 to 2dc5c414.
==> New Formulae
aeskeyfind    deisctl       gcovr         goolabs       kubernetes-cli    libepoxy      openhmd       pdf-redact-tools  scalaenv      sstp-client       vegeta        wifi-password wslay
==> Updated Formulae
aacgain         ansible         cereal          dos2unix        fzf         googlecl        homebrew/x11/wmctrl ipsumdump       libgadu         lsh         neon            pstoedit        scm-manager     terraform       vowpal-wabbit
abcl            aptly           cgal            dvorak7min      gauge           gradle          htop-osx        jetty           libmp3splt      mdr         neovim/neovim/neovim    pup         sipsak          the_platinum_searcher   wellington
abcmidi         asciinema       cheat           dynamodb-local      gh          groovy          httpie          jq          libmpc          memo            nettle          python          sntop           tomcat          wine
abduco          avian           chromedriver        elasticsearch       ghostscript     groovyserv      hub         juju            libmpdclient        mongo-c         newlisp         python3         spiped          tor         writerperfect
abook           berkeley-db     clang-format        enet            git-extras      gtk-gnutella        hugo            kakasi          libmusicbrainz      mp3info         newsbeuter      qt          spoof-mac       typesafe-activator  yacas
acpica          bind            couchdb-lucene      epstool         github-release      gvp         ice         keybase         libodfgen       mp3splt         nsq         qt5         ssdb            unittest        yara
activemq        bsdmake         css-crush       ffmpeg          gl2ps           h2o         icecream        kvazaar         libpointing     mpich2          orientdb        rakudo-star     sync_gateway        unittest-cpp        youtube-dl
activemq-cpp        capstone        cvs         fish            global          hamsterdb       iftop           latex2html      librevenge      mtr         osquery         redpen          sysbench        unrar           znc
adplug          carthage        datomic         fleetctl        gnupg2          hbase           iojs            libdvdcss       libxmp          mysql           peco            rocket          szip            uru
aespipe         cctools         direnv          flow            go          hg-flow         iozone          libdvdnav       logcheck        mysql-cluster       pinentry-mac        rust            task            vilistextum
afflib          center-im       docker          fsh         google-app-engine   homebrew/dupes/make ipbt            libdvdread      lolcode         n           pngpaste        s-lang          tcptraceroute       vnu
==> Deleted Formulae
adobe-air-sdk  celt
lahwran@lahwran:~$ brew cask uninstall clementine
Error: wrong number of arguments (1 for 0) while loading '/usr/local/Library/Taps/caskroom/homebrew-cask/Casks/clementine.rb'
Please report this bug:
    https://github.com/caskroom/homebrew-cask/issues
<main>:8:in `name'
<main>:8:in `<class:Clementine>'
<main>:in `<main>'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/source/path_base.rb:55:in `eval'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/source/path_base.rb:55:in `rescue in load'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/source/path_base.rb:52:in `load'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/source/tapped.rb:28:in `load'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask.rb:124:in `load'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/cli/uninstall.rb:8:in `block in run'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/cli/uninstall.rb:6:in `each'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/cli/uninstall.rb:6:in `run'
/usr/local/Cellar/brew-cask/0.45.0/rubylib/cask/cli.rb:81:in `run_command'
/usr/local/Cellar/brew-cask/0.45.0/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:58:in `require?'
/usr/local/Library/brew.rb:141:in `<main>'
lahwran@lahwran:~$ brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!

Warning: A newer Command Line Tools release is available.
Update them from Software Update in the App Store.

Warning: Putting non-prefixed coreutils in your path can cause gmp builds to fail.

Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected dylibs:
    /usr/local/lib/libarena-4e7c5e5c.dylib
    /usr/local/lib/libflate-4e7c5e5c.dylib
    /usr/local/lib/libfmt_macros-4e7c5e5c.dylib
    /usr/local/lib/libgetopts-4e7c5e5c.dylib
    /usr/local/lib/libgraphviz-4e7c5e5c.dylib
    /usr/local/lib/liblog-4e7c5e5c.dylib
    /usr/local/lib/librbml-4e7c5e5c.dylib
    /usr/local/lib/librustc-4e7c5e5c.dylib
    /usr/local/lib/librustc_back-4e7c5e5c.dylib
    /usr/local/lib/librustc_borrowck-4e7c5e5c.dylib
    /usr/local/lib/librustc_driver-4e7c5e5c.dylib
    /usr/local/lib/librustc_llvm-4e7c5e5c.dylib
    /usr/local/lib/librustc_privacy-4e7c5e5c.dylib
    /usr/local/lib/librustc_resolve-4e7c5e5c.dylib
    /usr/local/lib/librustc_trans-4e7c5e5c.dylib
    /usr/local/lib/librustc_typeck-4e7c5e5c.dylib
    /usr/local/lib/librustdoc-4e7c5e5c.dylib
    /usr/local/lib/libserialize-4e7c5e5c.dylib
    /usr/local/lib/libstd-4e7c5e5c.dylib
    /usr/local/lib/libsyntax-4e7c5e5c.dylib
    /usr/local/lib/libterm-4e7c5e5c.dylib
    /usr/local/lib/libtest-4e7c5e5c.dylib

Warning: You have unlinked kegs in your Cellar
Leaving kegs unlinked can lead to build-trouble and cause brews that depend on
those kegs to fail to run properly once built. Run `brew link` on these:

    ceylon
    python

Warning: Some directories in your path end in a slash.
Directories in your path should not end in a slash. This can break other
doctor checks. The following directories should be edited:
    /Users/lahwran/adt/sdk/tools/    /Users/lahwran/katamari/operations/bin/    /Users/lahwran/winmonitor/frozen2/bin/

Warning: Homebrew's sbin was not found in your PATH but you have installed
formulae that put executables in /usr/local/sbin.
Consider setting the PATH for example like so
    echo export PATH='/usr/local/sbin:$PATH' >> ~/.bash_profile
lahwran@lahwran:~$

[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.

Please always do this before opening new issues.

[lahwran]

It'd be cool if it actually said that in errors, instead of just "report this". I tried to update it, but the obvious thing didn't work, apparently.

[vitorgalvao]

It does say that, just not in the version you had (introduced in 0.50.0).