no implicit conversion of nil into String (Java 1.8.5 Yosemite)

[SummitPatel]

Hi,

I tried to run "brew cask install java" today and I received this error:

Error:no implicit conversion of nil into String

/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/digest.rb:44:in initialize' /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/digest.rb:44:inopen'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/digest.rb:44:in file' /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/digest.rb:29:infile'
/usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/download.rb:41:in block in _check_sums' /usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/download.rb:39:ineach'
/usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/download.rb:39:in _check_sums' /usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/download.rb:32:inperform'
/usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/installer.rb:72:in download' /usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/installer.rb:49:ininstall'
/usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/cli/install.rb:20:in block in install_casks' /usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/cli/install.rb:17:ineach'
/usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/cli/install.rb:17:in install_casks' /usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/cli/install.rb:6:inrun'
/usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/cli.rb:81:in run_command' /usr/local/Cellar/brew-cask/0.48.0/rubylib/cask/cli.rb:121:inprocess'
/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:inrequire'
/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:inrequire?'
/usr/local/Library/brew.rb:142:in `

'

Let me know if I need to provide more information.

[rolandwalker]

Hi!

This is a duplicate of #7946.

We recently merged a fix and cut release v0.50.0. The following command should fix the issue:

$ brew update && brew upgrade brew-cask && brew cleanup && brew cask cleanup