heroku 推送错误:“无法检测到 rake 任务"； [英] heroku push error: "Could not detect rake tasks"

问题描述

我正在尝试部署一个基本的应用程序，但它不起作用.使用

I'm trying to deploy a basic app and it's not working. Using

git push heroku master 

我收到此错误消息:

remote:  !     Could not detect rake tasks
remote:  !     ensure you can run `$ bundle exec rake -P` against your app
remote:  !     and using the production group of your Gemfile.
remote:  !     rake aborted!
remote:  !     LoadError: cannot load such file -- /tmp/build_a1cfcabff50107f84830d908386197b2/config/application
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/Rakefile:4:in `require'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/Rakefile:4:in `<top (required)>'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/lib/rake/rake_module.rb:28:in `load_rakefile'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:689:in `raw_load_rakefile'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:94:in `block in load_rakefile'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:93:in `load_rakefile'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:77:in `block in run'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:176:in `standard_exception_handling'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/lib/rake/application.rb:75:in `run'
remote:  !     /tmp/build_a1cfcabff50107f84830d908386197b2/vendor/bundle/ruby/2.2.0/gems/rake-11.1.2/bin/rake:33:in `<top (required)>'
remote:  !     vendor/bundle/bin/rake:16:in `load'
remote:  !     vendor/bundle/bin/rake:16:in `<main>'
remote:  !
remote: /app/tmp/buildpacks/ruby/lib/language_pack/helpers/rake_runner.rb:102:in `load_rake_tasks!': Could not detect rake tasks (LanguagePack::Helpers::RakeRunner::CannotLoadRakefileError)

bundle exec rake -P 似乎工作正常.

我的 Gemfile 没有什么特别的，我只是添加了 Bootstrap:

There's nothing special in my Gemfile, I just added Bootstrap:

source 'https://rubygems.org'


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.5.1'

# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc

gem 'bootstrap-sass' 
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
#postgreeSQL for Heroku deployment


group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug'
  gem 'sqlite3'
end

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


  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
end
group :production do
  gem 'pg'
  gem 'rails_12factor'
end
ruby "2.2.3"

好吧，我不明白为什么会这样，因为我有另一个正常工作的项目.我检查了一切，它仍然给我这条消息.

Well, I don't see why it's happening, since I have another project that is working normally. I checked everything and it still gives me that message.

推荐答案

有时 Heroku 会抛出有关资产部署的问题.您可以预编译资产并将其推送到 Heroku.

Sometimes Heroku throws an issue on deployment about assets. You can precompile assets and push it to Heroku.

RAILS_ENV=production bundle exec rake assets:precompile

更新:

如果它不起作用，请确保添加RAILS_SERVE_STATIC_FILES 环境.到你的服务器.

In case of it doesn't work, make sure to add RAILS_SERVE_STATIC_FILES env. to yr server.

使其enabled 或true 或anything :)

因为在 Rails <5.1 production.rb 中有

Because in Rails <5.1 production.rb has

config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?

Heroku:应用程序 -> 设置 ->显示配置变量"

Heroku: App -> Settings -> "Reveal Config Vars"

示例:

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