error heroku deploy

heroku

C:\Projects\api-app>git push heroku
Counting objects: 24, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (20/20), done.
Writing objects: 100% (20/20), 1.99 KiB, done.
Total 20 (delta 16), reused 0 (delta 0)

-----> Heroku receiving push
-----> Removing .DS_Store files
-----> Ruby/Rails app detected
-----> Detected Rails is not set to serve static_assets
       Installing rails3_serve_static_assets... done
-----> Configure Rails 3 to disable x-sendfile
       Installing rails3_disable_x_sendfile... done
-----> Configure Rails to log to stdout
       Installing rails_log_stdout... done
-----> Gemfile detected, running Bundler version 1.0.7
       Unresolved dependencies detected; Installing...
       Using --without development:test
       Windows Gemfile.lock detected, ignoring it.
       You have modified your Gemfile in development but did not check
       the resulting snapshot (Gemfile.lock) into version control

       You have added to the Gemfile:
       * source: rubygems repository http://rubygems.org/
       * rails (= 3.1.0)
       * mysql2
       * pg
       * execjs
       * sass-rails (~> 3.1.0)
       * coffee-rails (~> 3.1.0)
       * uglifier
       * jquery-rails
       * turn
       FAILED: http://devcenter.heroku.com/articles/bundler
 !     Heroku push rejected, failed to install gems via Bundler

To [email protected]:api-app.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to '[email protected]:api-app.git'