Errors when compiling assets on deployment

Forgive my tone, but this is an example of a Ruby on Rails issue that really pisses me off.

We have an application in development (specs below). When we deploy to our dev server, we:

• svn checkout the branch
• bundle install
• bundle update
• bundle exec rake assets:precompile

On one deploy, all succeeded. About 30 minutes later, there was a commit to the project that was nothing functional (just deleting a config/.yml file from the project). That commit triggered another deploy, and that one failed. Inspecting the log shows what looked like a JS compilation error on a JS file included by a gem. Re-deploying showed another similar error, but for a different file.

None of the files for the project have changed. Most of the gems in our Gemfile are pegged to a specific version, and i inspected the list of gems output from the 'bundle update' deploy process for the deploy that succeeded vs. the one that failed and they are identical.

I'm also including the precompile errors from the log. Any input on where to investigate would be much appreciated.

Application

• Ruby 1.9.3
• Rails 3.1.11

Gems

Using rake 11.1.2
Using multi_json 1.12.1
Using activesupport 3.1.11
Using builder 3.0.4
Using i18n 0.7.0
Using activemodel 3.1.11
Using erubis 2.7.0
Using rack 1.3.10
Using rack-cache 1.6.1
Using rack-mount 0.8.3
Using rack-test 0.6.3
Using hike 1.2.3
Using tilt 1.3.7
Using sprockets 2.0.5
Using actionpack 3.1.11
Using mime-types 1.25.1
Using polyglot 0.3.5
Using treetop 1.4.15
Using mail 2.3.3
Using actionmailer 3.1.11
Using arel 2.2.3
Using tzinfo 0.3.35
Using activerecord 3.1.11
Using activeresource 3.1.11
Using awesome_print 1.6.1
Using rack-ssl 1.3.4
Using json 1.8.3
Using rdoc 3.12.2
Using thor 0.14.6
Using railties 3.1.11
Using momentjs-rails 2.11.1
Using bootstrap3-datetimepicker-rails 4.17.37
Using bundler 1.10.3
Using coffee-script-source 1.10.0
Using execjs 2.7.0
Using coffee-script 2.4.1
Using coffee-rails 3.1.1
Using dynamic_form 1.1.4
Using fastercsv 1.5.5
Using geocoder 1.0.5
Using hirb 0.7.3
Using jquery-rails 3.1.2
Using jquery-ui-rails 4.1.2
Using jquery_ui_rails_helpers 0.0.4
Using libv8 3.16.14.7
Using mysql2 0.3.20
Using paint 0.9.0
Using pdfkit 0.8.2
Using rack-mini-profiler 0.9.8
Using rails 3.1.11
Using rails-console-tweaks 1.0.2
Using rails3-jquery-autocomplete 1.0.12
Using ref 2.0.0
Using sass 3.4.22
Using sass-rails 3.1.7
Using therubyracer 0.12.2
Using tinymce-rails 4.0.12
Using uglifier 2.7.1
Using will_paginate 3.0.7
Using wirb 1.0.3
Using wirble 0.1.3
Using wkhtmltopdf-binary 0.9.9.3

First Error

rake aborted!
TypeError: wrong argument type Object (expected Data)  (in /.../js/jquery.easing.min.js)/.../gems/therubyracer-0.12.2/lib/v8/function.rb:13:in `Call'/.../gems/therubyracer-0.12.2/lib/v8/function.rb:13:in `block (2 levels) in methodcall'/.../gems/therubyracer-0.12.2/lib/v8/error.rb:84:in `block in try'/.../gems/therubyracer-0.12.2/lib/v8/error.rb:83:in `call'/.../gems/therubyracer-0.12.2/lib/v8/error.rb:83

Second Error (note that this second deploy was manually initiated right after the first, with literally no changes to the code being deployed) rake aborted! TypeError: wrong argument type String (expected Data) (in /.../revolution/js/extensions/revolution.extension.video.min.js)