部署时出现此错误。之后将 rails 升级到 5.2，将 ruby 升级到 2.5.1，同时升级 heroku 堆栈，我遇到了同样的错误。 有人对此有答案吗？
remote:
remote: Bundle completed (259.65s)
remote: Cleaning up the bundler cache.
remote: -----> Installing node-v10.15.3-linux-x64
remote: Detected manifest file, assuming assets were compiled locally
remote: -----> Detecting rails configuration
remote: -----> Detecting rake tasks
remote:
remote: !
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: ! ActiveRecord::ConnectionNotEstablished: No connection pool with 'primary' found.
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:1032:in `retrieve_connection'
remote: !
/tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/connection_handling.rb:118:in `retrieve_connection'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/connection_handling.rb:90:in `connection'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/model_schema.rb:466:in `load_schema!'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/attributes.rb:234:in `load_schema!'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/attribute_decorators.rb:51:in `load_schema!'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/model_schema.rb:459:in `block in load_schema'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/ruby-2.5.1/lib/ruby/2.5.0/monitor.rb:226:in `mon_synchronize'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/model_schema.rb:456:in `load_schema'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/model_schema.rb:336:in `columns_hash'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/dynamic_matchers.rb:60:in `block in valid?'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/dynamic_matchers.rb:60:in `each'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/dynamic_matchers.rb:60:in `all?'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/dynamic_matchers.rb:60:in `valid?'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/dynamic_matchers.rb:11:in `respond_to_missing?'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/scoping/named.rb:205:in `respond_to?'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/scoping/named.rb:205:in `valid_scope_name?'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/scoping/named.rb:180:in `scope'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/si-core_data-3.0.6/lib/si/core_data/user_service/user.rb:14:in `<class:User>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/si-core_data-3.0.6/lib/si/core_data/user_service/user.rb:4:in `<module:UserService>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/si-core_data-3.0.6/lib/si/core_data/user_service/user.rb:2:in `<module:SI>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/si-core_data-3.0.6/lib/si/core_data/user_service/user.rb:1:in `<top (required)>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `block in require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:257:in `load_dependency'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/si-core_data-3.0.6/lib/si/core_data/user_service.rb:1:in `<top (required)>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `block in require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:257:in `load_dependency'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.4.1/lib/active_support/dependencies.rb:291:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/si-core_data-3.0.6/lib/si/core_data.rb:17:in `<top (required)>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:95:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:95:in `rescue in block in require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:72:in `block in require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:65:in `each'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:65:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler.rb:114:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/config/application.rb:7:in `<top (required)>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/Rakefile:4:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/Rakefile:4:in `<top (required)>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/rake_module.rb:29:in `load'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/rake_module.rb:29:in `load_rakefile'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:703:in `raw_load_rakefile'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:104:in `block in load_rakefile'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:186:in `standard_exception_handling'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:103:in `load_rakefile'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:82:in `block in run'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:186:in `standard_exception_handling'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:80:in `run'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/exe/rake:27:in `<top (required)>'
remote: ! vendor/bundle/bin/rake:29:in `load'
remote: ! vendor/bundle/bin/rake:29:in `<main>'
remote: !
remote: ! Caused by:
remote: ! LoadError: cannot load such file -- si-core_data
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:81:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:81:in `block (2 levels) in require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:76:in `each'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:76:in `block in require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:65:in `each'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler/runtime.rb:65:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/bundler-2.0.2/lib/bundler.rb:114:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/config/application.rb:7:in `<top (required)>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/Rakefile:4:in `require'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/Rakefile:4:in `<top (required)>'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/rake_module.rb:29:in `load'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/rake_module.rb:29:in `load_rakefile'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:703:in `raw_load_rakefile'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:104:in `block in load_rakefile'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:186:in `standard_exception_handling'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:103:in `load_rakefile'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:82:in `block in run'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:186:in `standard_exception_handling'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/lib/rake/application.rb:80:in `run'
remote: ! /tmp/build_8941f32f57c79f59e7ea337d348ba6f8/vendor/bundle/ruby/2.5.0/gems/rake-13.0.1/exe/rake:27:in `<top (required)>'
remote: ! vendor/bundle/bin/rake:29:in `load'
remote: ! vendor/bundle/bin/rake:29:in `<main>'
remote: !
remote: /app/tmp/buildpacks/b7af5642714be4eddaa5f35e2b4c36176b839b4abcd9bfe57ee71c358d71152b4fd2cf925c5b6e6816adee359c4f0f966b663a7f8649b0729509d510091abc07/lib/language_pack/helpers/rake_runner.rb:106:in `load_rake_tasks!': Could not detect rake tasks (LanguagePack::Helpers::RakeRunner::CannotLoadRakefileError)
最佳答案
我之前遇到过这个问题，我认为这是由你的捆绑程序版本引起的。您的本地系统可以正常运行当前版本的 bundler ，但 heroku 不能。
在本地试试这个:
gem install bundler -v 2.0.2
bundle update --bundler
并将其部署到 heroku，看看是否有帮助。
关于ruby-on-rails - Heroku-18 堆栈升级后无法部署我的 Rails 项目，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59944059/