堆栈内存溢出
  简体   繁体   English

部署到 Heroku 的 Rails 应用程序出现 NoMethodError（在模型上调用.create 时）

[英]NoMethodError with Rails app deployed to Heroku (When calling .create on model)

 原文  2020-12-08 20:42:37  3   1    ruby-on-rails/ postgresql/ heroku

问题描述

I am writing a Ruby on Rails web application to be deployed on Heroku.我正在编写一个 Ruby on Rails web 应用程序，以部署在 Heroku 上。

The development database is SQLite and the production database is PostgreSQL.开发数据库为 SQLite，生产数据库为 PostgreSQL。

Everything works locally in the development and test environments, and worked on Heroku up until the last batch of revisions.一切都在开发和测试环境中本地工作，并在 Heroku 上工作，直到最后一批修订。 Suddenly, attempting to create an instance of the Customer model is throwing突然，试图创建客户 model 的实例正在抛出

'NoMethodError undefined method `each' for nil:nilclass'.

The migrations have definitely been run, I have tried pg:reset and re-running migrations, and I have also tried restarting heroku.迁移肯定已经运行，我尝试过 pg:reset 和重新运行迁移，我还尝试过重新启动 heroku。

If I open the rails console on heroku and try to call any of the following methods I get the same error如果我在 heroku 上打开 rails 控制台并尝试调用以下任何方法，我会收到相同的错误

Customer.count Customer.create(...) Customer.new Customer.count Customer.create(...) Customer.new

Can anyone help resolve this issue?任何人都可以帮助解决这个问题吗？

EDIT:编辑：

Stacktrace when running rails db:migrate with Postgres DB ( no errors with SQLite )运行 rails db:migrate with Postgres DB 时的 Stacktrace（SQLite 没有错误）

** Invoke db:_dump (first_time)
** Execute db:_dump
** Invoke db:schema:dump (first_time)
** Invoke db:load_config
** Execute db:schema:dump
rails aborted!
NoMethodError: undefined method `each' for nil:NilClass
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/descriptive_statistics-2.5.1/lib/descriptive_statistics/support/convert.rb:37:in `to_array'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/descriptive_statistics-2.5.1/lib/descriptive_statistics/support/convert.rb:8:in `convert'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/descriptive_statistics-2.5.1/lib/descriptive_statistics/sum.rb:3:in `sum'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.4/lib/active_support/core_ext/enumerable.rb:185:in `sum'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/postgresql/schema_statements.rb:659:in `sequence_name_from_parts'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/postgresql/schema_statements.rb:631:in `new_column_from_field'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:115:in `block in columns'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:114:in `map'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/schema_statements.rb:114:in `columns'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/schema_dumper.rb:112:in `table'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/schema_dumper.rb:100:in `block in tables'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/schema_dumper.rb:99:in `each'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/schema_dumper.rb:99:in `tables'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/schema_dumper.rb:44:in `dump'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/schema_dumper.rb:28:in `dump'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/tasks/database_tasks.rb:377:in `block in dump_schema'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/tasks/database_tasks.rb:376:in `open'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/tasks/database_tasks.rb:376:in `dump_schema'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/railties/databases.rake:392:in `block (4 levels) in <main>'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/railties/databases.rake:390:in `each'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/railties/databases.rake:390:in `block (3 levels) in <main>'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `block in execute'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `each'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `execute'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:219:in `block in invoke_with_call_chain'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `synchronize'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `invoke_with_call_chain'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:188:in `invoke'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/railties/databases.rake:97:in `block (2 levels) in <main>'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `block in execute'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `each'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `execute'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:219:in `block in invoke_with_call_chain'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `synchronize'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `invoke_with_call_chain'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:188:in `invoke'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activerecord-6.0.3.4/lib/active_record/railties/databases.rake:88:in `block (2 levels) in <main>'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `block in execute'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `each'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `execute'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:219:in `block in invoke_with_call_chain'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `synchronize'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `invoke_with_call_chain'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:188:in `invoke'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:160:in `invoke_task'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block (2 levels) in top_level'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `each'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block in top_level'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:125:in `run_with_threads'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:110:in `top_level'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.4/lib/rails/commands/rake/rake_command.rb:23:in `block in perform'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:186:in `standard_exception_handling'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.4/lib/rails/commands/rake/rake_command.rb:20:in `perform'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.4/lib/rails/command.rb:48:in `invoke'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/railties-6.0.3.4/lib/rails/commands.rb:18:in `<main>'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.4/lib/active_support/dependencies.rb:324:in `block in require'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.4/lib/active_support/dependencies.rb:291:in `load_dependency'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/activesupport-6.0.3.4/lib/active_support/dependencies.rb:324:in `require'
/Users/harilimaye/Documents/CompSci/Year 2/SEG/smg/alpaca_online_banking/bin/rails:9:in `<top (required)>'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/client/rails.rb:28:in `load'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/client/rails.rb:28:in `call'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/client/command.rb:7:in `call'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/client.rb:30:in `run'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/bin/spring:49:in `<top (required)>'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/binstub.rb:11:in `load'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/spring-2.1.1/lib/spring/binstub.rb:11:in `<top (required)>'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require'
/Users/harilimaye/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require'
/Users/harilimaye/Documents/CompSci/Year 2/SEG/smg/alpaca_online_banking/bin/spring:15:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'

1 个解决方案

解决方案1
 1 已采纳  2020-12-14 22:06:55

So it turned out the problem was due to the inclusion of gem 'transaction_faker' in my gem-file, which added the module descriptive_statistics (the source of the problem).所以事实证明问题是由于在我的 gem 文件中包含gem 'transaction_faker' ，它添加了模块 descriptive_statistics （问题的根源）。 My GUESS is that it must override the sum method of the Enumerable module used in the conversion from migration to Postgres, or something along those lines.我的猜测是它必须覆盖从迁移到 Postgres 的转换中使用的 Enumerable 模块的 sum 方法，或者类似的东西。

暂无
暂无

声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

相关问题 Rails app中缺少模板/部署到Heroku时创建POST操作 - Missing Template in Rails app on /create POST action when deployed to Heroku Rails应用程序在本地运行，但在部署到Heroku时则不行 - Rails app works locally but not when deployed to Heroku Rails App可在本地运行，但在Heroku上部署时无法运行 - Rails App works locally but not when deployed on Heroku 在Heroku中使用Webpack部署Rails应用程序时出错 - Error when deployed the rails app with webpack in the Heroku 在Rails中，我在新模型中调用函数时遇到NoMethodError - In Rails, I'm getting a NoMethodError when calling function in new model 从控制器调用模型方法时出现Rails NoMethodError - Rails NoMethodError when calling a model method from a controller 在用户模型中调用方法时，SessionsController＃create中的NoMethodError - NoMethodError in SessionsController#create when calling a method in user model 如何让用户在Heroku上部署的Rails应用程序中创建计划任务 - How to have users create scheduled tasks in rails app deployed on Heroku 将Rails应用程序部署到Heroku无法正常工作 - Deployed rails app to Heroku not working Rails NoMethodError for Heroku上的Blog＃create，但不是Localhost - Rails NoMethodError for Blog#create on Heroku, but not Localhost
相关标签
 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM