Bundler error on Heroku running Rails 4 and Ruby 2.0.0

Question

Attempting to deploy a very basic Rails 4.0.0 beta 1 app on Ruby 2.0.0 using Heroku Cedar. When I try and push to Heroku I get the following bundler error:

bin/bundle: 1: Syntax error: "(" unexpected
Failed to install gems via Bundler.

Gemfile is as follows:

source 'https://rubygems.org'
ruby '2.0.0'

gem 'rails', '4.0.0.beta1'
gem 'jquery-rails', '~> 2.2.1'
gem 'jbuilder', '~> 1.0.1'
gem 'angularjs-rails', '~> 1.0.5'
gem 'lodash-rails'

group :assets do
  gem 'sass-rails', '~> 4.0.0.beta1'
  gem 'coffee-rails', '~> 4.0.0.beta1'
  gem 'uglifier', '>= 1.0.3'
end

group :test do
  gem 'factory_girl_rails', '~> 4.2.1'
end

group :test, :development do
  gem 'sqlite3'
end

group :production do
  gem 'pg'
end

I don't get any bundler errors with bundle install when I run it locally using bundler 1.3.4

Anyone have any idea or experience with edge Rails on Heroku Cedar?

Answer 1

Use this gist to install a rails 4 app on heroku.

I was unable to get it running on heroku with ruby 2.0. Using the above gist is my way of doing it until there is a clear way of upgrading smoothly to ruby 2.0.

Here is the question from when I ran into issues.

Answer 2

问题实际上是bin目录中的“ bundle”可执行文件，一旦我删除了“ bin / bundler”，它的部署就很好了。

Answer 3

You need to add a line with ruby "2.0.0" to the begin of your Gemfile.

For more informations go to the heroku documentation .