title: Error when push to heroku
body: <p>I am trying to push my rails application to heroku and I am getting the following error</p>
  
  <p>Giving the below command to push the application to heroku</p>
  
  <p>git push heroku</p>
  
  <pre><code>BASE_URL
  -----&gt; Preparing app for Rails asset pipeline
     Running: rake assets:precompile
     rake aborted!
     ExecJS::ProgramError: Unexpected token name «success», expected punc «,» (line: 28382, col: 5, pos: 808689)
     Error
     at new JS_Parse_Error (/tmp/execjs20150113-795-19086mxjs:2316:10736)
     at js_error (/tmp/execjs20150113-795-19086mxjs:2316:10955)
     at croak (/tmp/execjs20150113-795-19086mxjs:2316:18665)
     at token_error (/tmp/execjs20150113-795-19086mxjs:2316:18802)
     at expect_token (/tmp/execjs20150113-795-19086mxjs:2316:19025)
     at expect (/tmp/execjs20150113-795-19086mxjs:2316:19163)
     at /tmp/execjs20150113-795-19086mxjs:2316:27411
     at /tmp/execjs20150113-795-19086mxjs:2316:19536
     at expr_atom (/tmp/execjs20150113-795-19086mxjs:2316:26586)
     at maybe_unary (/tmp/execjs20150113-795-19086mxjs:2316:29260)
     at expr_ops (/tmp/execjs20150113-795-19086mxjs:2316:30018)
     at maybe_conditional (/tmp/execjs20150113-795-19086mxjs:2316:30110)
     at maybe_assign (/tmp/execjs20150113-795-19086mxjs:2316:30553)
     at expression (/tmp/execjs20150113-795-19086mxjs:2316:30866)
     at expr_list (/tmp/execjs20150113-795-19086mxjs:2316:27140)
     (in /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/app/assets/javascripts/application.js)/tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/execjs-2.2.1/lib/execjs/external_runtime.rb:64:in `extract_result'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/execjs-2.2.1/lib/execjs/external_runtime.rb:29:in `exec'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/uglifier-2.1.1/lib/uglifier.rb:176:in `really_compile'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/uglifier-2.1.1/lib/uglifier.rb:100:in `compile'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/uglifier_compressor.rb:25:in `evaluate'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/tilt-1.4.1/lib/tilt/template.rb:103:in `render'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/context.rb:197:in `block in evaluate'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/context.rb:194:in `each'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/context.rb:194:in `evaluate'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/bundled_asset.rb:25:in `initialize'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/base.rb:377:in `new'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/base.rb:377:in `build_asset'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/index.rb:94:in `block in build_asset'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/caching.rb:58:in `cache_asset'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/index.rb:93:in `build_asset'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/base.rb:287:in `find_asset'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/index.rb:61:in `find_asset'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:211:in `block in find_asset'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:257:in `benchmark'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:210:in `find_asset'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:119:in `block in compile'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:118:in `each'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/sprockets/manifest.rb:118:in `compile'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-rails-2.1.4/lib/sprockets/rails/task.rb:70:in `block (3 levels) in define'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-2.11.0/lib/rake/sprocketstask.rb:146:in `with_logger'
     /tmp/build_e7dfa4e24f74c0bd24ba5cd9eb5bd3a4/vendor/bundle/ruby/1.9.1/gems/sprockets-rails-2.1.4/lib/sprockets/rails/task.rb:69:in `block (2 levels) in define'
  </code></pre>
  
  <p>Here is my application.js file</p>
  
  <pre><code>// This is a manifest file that'll be compiled into application.js, which will include all the files
  // listed below.
  //
  // Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
  // or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
  //
  // It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
  // compiled file.
  //
  // Read Sprockets README (https://github.com/sstephenson/sprockets#sprockets-directives) for details
  // about supported directives.
  //
  //= require turbolinks
  //= require jquery
  //= require jquery_ujs
  //= require bootstrap
  //= require_tree .
  //= require jquery.ui.all
  //= require jquery.ui.datepicker
  
  
  $(document).ready(function() {
  
     $("#start_date").datepicker();
     $("#end_date").datepicker();
  
   });
  </code></pre>
  
  <p>Please suggest where to check for resolving the error.</p>