Audiobus CocoaPods install error

gistfile1.sh

rake pod:install                                                                                                                                                           [14/496]
Could not find json-1.8.1 in any of the sources
Run `bundle install` to install missing gems.
Updating spec repo `master`
Already up-to-date.

CocoaPods 0.36.0.beta.1 is available.
To update use: `sudo gem install cocoapods --pre`
[!] This is a test version we'd love you to try.

For more information see http://blog.cocoapods.org
and the CHANGELOG for this version http://git.io/BaH8pQ.

Analyzing dependencies
Downloading dependencies
Installing Audiobus (2.1.5)
Username for 'https://developer.audiob.us': [email protected]
Password for 'https://[email protected]@developer.audiob.us': 
rake aborted!
Pod::Informative: [!] /usr/local/bin/git clone http://developer.audiob.us/download/SDK.git /Users/mwise/projects/open-source/footest/vendor/Pods/Audiobus --single-branch --depth 1 -
-branch 2.1.5

Cloning into '/Users/mwise/projects/open-source/footest/vendor/Pods/Audiobus'...

fatal: dumb http transport does not support --depth
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/executable.rb:70:in `execute_command'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/downloader.rb:12:in `execute_command'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-downloader-0.8.1/lib/cocoapods-downloader/base.rb:152:in `block in executable'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-downloader-0.8.1/lib/cocoapods-downloader/git.rb:65:in `block in clone'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/downloader.rb:45:in `block in ui_sub_action'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/user_interface.rb:49:in `section'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/downloader.rb:44:in `ui_sub_action'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-downloader-0.8.1/lib/cocoapods-downloader/git.rb:63:in `clone'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-downloader-0.8.1/lib/cocoapods-downloader/git.rb:29:in `download!'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-downloader-0.8.1/lib/cocoapods-downloader/base.rb:80:in `block in download'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/downloader.rb:29:in `block in ui_action'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/user_interface.rb:49:in `section'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/downloader.rb:28:in `ui_action'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-downloader-0.8.1/lib/cocoapods-downloader/base.rb:78:in `download'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/installer/pod_source_installer.rb:98:in `download_source'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/installer/pod_source_installer.rb:45:in `install!'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/installer.rb:298:in `install_source_of_pod'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/installer.rb:273:in `block (2 levels) in install_pod_sources'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/user_interface.rb:70:in `titled_section'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/installer.rb:272:in `block in install_pod_sources'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/installer.rb:264:in `each'
ootest/gems/cocoapods-0.35.0/lib/cocoapods/installer.rb:264:in `install_pod_sources'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/installer.rb:116:in `block in download_dependencies'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/user_interface.rb:49:in `section'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/installer.rb:114:in `download_dependencies'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/cocoapods-0.35.0/lib/cocoapods/installer.rb:91:in `install!'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/motion-cocoapods-1.7.0/lib/motion/project/cocoapods.rb:225:in `install!'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/gems/motion-cocoapods-1.7.0/lib/motion/project/cocoapods.rb:348:in `block (2 levels) in <top (required)>'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/bin/ruby_executable_hooks:15:in `eval'
/Users/mwise/.rvm/gems/ruby-2.1.2@footest/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => pod:install
(See full trace by running task with --trace)