Issue with Ocra when building

[niuage]

When I run bundle exec rake build --trace, I get this at some point:

Yay.

But then:

attr_reader :path
if File::ALT_SEPARATOR.nil?
  File::ALT_SEPARATOR = "\\" # this is line 19
end
SEPARATOR_PAT = /[#{Regexp.quote File::ALT_SEPARATOR}#{Regexp.quote File::SEPARATOR}]/ # }
ABSOLUTE_PAT = /\A([A-Z]:)?#{SEPARATOR_PAT}/i

Any ideas? I thought maybe it was my local ruby version. I tried with both 2.2.0 and 1.9.3. Thanks.

[coontail]

Same issue for me.