Hi,
I am trying to build an offline buildpack and upload it to my CF PaaS(installed using CF Nise installer) so that my CF wont need internet when i push my Java webapp.

Bundler version: 1.6.2
Ruby version: ruby 1.9.3p545 (2014-02-24) [i386-mingw32]

i cloned this repo, did a 'bundle install', followed by 'bundle exec rake package OFFLINE=true'. i am getting the following error:

C:\Users\kjhawar\ws\java-buildpack>bundle exec rake package OFFLINE=true > log
.txt
The system cannot find the path specified.
The system cannot find the path specified.
[DownloadCache] WARN Request failure 1, retrying: Content has
invalid size. Was 4041, should be 3976.
[DownloadCache] WARN Request failure 2, retrying: Content has
invalid size. Was 4041, should be 3976.
[DownloadCache] WARN Request failure 3, retrying: Content has
invalid size. Was 4041, should be 3976.
[DownloadCache] WARN Request failure 4, retrying: Content has
invalid size. Was 4041, should be 3976.
[DownloadCache] WARN Request failure 5, retrying: Content has
invalid size. Was 4041, should be 3976.
[InternetAvailability] WARN Internet availability set to false: Reque
st failed: Content has invalid size. Was 4041, should be 3976.
[DownloadCache] WARN Unable to download http://download.run.pi
votal.io/groovy/index.yml into cache build/staging/resources/cache: Content has
invalid size. Was 4041, should be 3976.
rake aborted!
Unable to find cached file for http://download.run.pivotal.io/groovy/index.yml
C:/Users/kjhawar/ws/java-buildpack/lib/java_buildpack/util/cache/download_cache.
rb:65:in get' C:/Users/kjhawar/ws/java-buildpack/rakelib/dependency_cache_task.rb:144:inbloc
k (2 levels) in uris'
C:/Users/kjhawar/ws/java-buildpack/rakelib/dependency_cache_task.rb:141:in each ' C:/Users/kjhawar/ws/java-buildpack/rakelib/dependency_cache_task.rb:141:inbloc
k in uris'
C:/Users/kjhawar/ws/java-buildpack/rakelib/dependency_cache_task.rb:140:in each ' C:/Users/kjhawar/ws/java-buildpack/rakelib/dependency_cache_task.rb:140:inuris
'
C:/Users/kjhawar/ws/java-buildpack/rakelib/dependency_cache_task.rb:42:in initi alize' C:/Users/kjhawar/ws/java-buildpack/Rakefile:40:innew'
C:/Users/kjhawar/ws/java-buildpack/Rakefile:40:in `<top (required)>'
(See full trace by running task with --trace)