アプリケーションエラー、未定義シンボル：rb_thread_select

Question

私は、 "アプリケーションエラー"を取得し、ログに "未定義シンボル：rb_thread_select"を取得するherokuに展開するまで、すべてが正常に動作していたRoRアプリケーションを持っています。 .0p0 "、" Rails 4.2.5 "gem 'pg'、 '0.18.4'、それを修正する方法は？

source 'https://rubygems.org' 


gem 'rails', '4.2.5' 
gem 'pg', '0.18.4' 
gem 'sass-rails', '~> 5.0' 
gem 'uglifier', '>= 1.3.0' 
gem 'coffee-rails', '~> 4.1.0' 
gem 'jquery-rails' 
gem 'turbolinks' 
gem 'jbuilder', '~> 2.0' 
gem 'sdoc', '~> 0.4.0', group: :doc 

gem 'foundation-rails' 

gem "paperclip", "~> 5.0.0" 

gem 'devise' 

gem 'redis', '~> 3.0.1' 
gem 'hiredis', '~> 0.4.5' 

# gem 'bcrypt', '~> 3.1.7' 

# gem 'unicorn' 

# gem 'capistrano-rails', group: :development 

group :development, :test do 
console 
    gem 'byebug' 
end 

group :development do 
    # Access an IRB console on exception pages or by using <%= console %> in views 
    gem 'web-console', '~> 2.0' 

background. Read more: https://github.com/rails/spring 
    gem 'spring' 
end 

Answer 1

source 'https://rubygems.org' 

ruby '2.3.0' 


gem 'rails', '4.2.5' 
gem 'sass-rails', '~> 5.0' 
gem 'uglifier', '>= 1.3.0' 
gem 'coffee-rails', '~> 4.1.0' 
gem 'jquery-rails' 
gem 'turbolinks' 
gem 'jbuilder', '~> 2.0' 
gem 'sdoc', '~> 0.4.0', group: :doc 

gem 'foundation-rails' 

gem "paperclip", "~> 5.0.0" 

gem 'devise' 

gem 'redis', '~> 3.0.1' 
gem 'hiredis', '~> 0.4.5' 

# gem 'bcrypt', '~> 3.1.7' 

# gem 'unicorn' 

# gem 'capistrano-rails', group: :development 

group :development, :test do 
console 
    gem 'byebug' 
end 

group :development do 
    # Access an IRB console on exception pages or by using <%= console %> in views 
    gem 'web-console', '~> 2.0' 

background. Read more: https://github.com/rails/spring 
    gem 'spring' 
end 

group :production do 
gem 'pg' 
gem 'rails_12factor' 
gem 'puma' 
end 

コピーして、このgemfileを貼り付け、バンドルがあなたの端末でをインストールし実行します。