Heroku crashes Rails 3.0.3 and Ruby 1.9.2

I am using Heroku bamboo-mri-1.9.2 with Amazon RDS database.

My app do crash on Heroku but not on my local pc.

My PC: Ruby 1.9.2p136 Rails 3.0.3

My Heroku log http://past开发者_StackOverflow社区ie.org/1690168

My heroku as 1 dyno and 0 workers

---

Looks like the issue is because Heroku has not installed the dynamic form plugin/gem.

See this article http://devcenter.heroku.com/articles/using-cli-plugins