error on rails assets:precompile

[ramyathulasingam]

I recently updated my rails app to use rails-angularjs 1.4.3. All the test pass but the assets:precompile is failing.

rake aborted!
ExecJS::ProgramError: Unexpected token: punc (:) (line: 2, col: 9, pos: 11)
Error
    at new JS_Parse_Error (<eval>:2357:10623)
    at js_error (<eval>:2357:10842)
    at croak (<eval>:2357:19067)
    at token_error (<eval>:2357:19204)
    at unexpected (<eval>:2357:19292)
    at semicolon (<eval>:2357:19765)
    at simple_statement (<eval>:2357:22538)
    at <eval>:2357:20255
    at <eval>:2357:19938
    at block_ (<eval>:2357:24557)
  (in /Users/xchen.rvm/gems/ruby-2.1.0@nookpressweb/gems/rails-angularjs-1.4.3/vendor/assets/javascripts/angular-animate.min.js.map)/

Angular Gems

gem 'rails-angularjs'
gem 'rails-assets-angular-animate', '1.4.3'
gem 'rails-assets-angular-route'
gem 'rails-assets-angular-sanitize'
gem 'rails-assets-angular-bootstrap'
gem 'rails-assets-angular-jquery'
gem 'rails-assets-angular-placeholder-tai'
gem 'rails-assets-es5-shim'
gem 'rails-assets-underscore'

Any idea on whats causing it?