在部署到heroku時出現Railties兼容性問題

Question

我曾嘗試在post Bundler gem compatibility issues when deploying to heroku.中提出的rails之前放置sass-rails，但它不起作用。

Heroku的錯誤消息

Bundler could not find compatible versions for gem "railties": 
In Gemfile: 
rails (= 4.0.0) ruby depends on 
railties (= 4.0.0) ruby 

sass-rails (= 4.0.0) ruby depends on 
railties (4.0.1.rc1) 

Failed to install gems via Bundler. 

的Gemfile

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

gem 'sass-rails', '4.0.0' 
gem 'rails', '4.0.0' 
gem 'pg', '0.15.1' 
gem 'bcrypt-ruby', '3.0.1' 

group :development, :test do 
    gem 'rspec-rails', '2.13.1' 
end 

group :test do 
    gem 'selenium-webdriver', '2.35.1' 
    gem 'capybara', '2.1.0' 
    gem 'factory_girl_rails', '4.2.1' 
end 

gem 'uglifier', '2.1.1' 
gem 'coffee-rails', '4.0.0' 
gem 'jquery-rails', '3.0.4' 
gem 'turbolinks', '1.1.1' 
gem 'jbuilder', '1.0.2' 

group :doc do 
    gem 'sdoc', '0.3.20', require: false 
end 

group :production do 
    gem 'rails_12factor', '0.0.2' 
end 

Answer 1

更改SASS項：

gem 'sass-rails', '~> 4.0.0' 

然後運行包更新，承諾和重新部署