我在生产环境中运行应用程序时遇到问题，当我在开发环境中运行时一切正常，但是生产环境显示很多错误，我不知道为什么，我在做什么错了？
Adam:service service$ RAILS_ENV=production rails s
=> Booting Puma
=> Rails 5.2.0 application starting in production
=> Run 'rails server -h' for more startup options
Exiting
Traceback (most recent call last):
83: from bin/rails:3:in '<main>'
82: from bin/rails:3:in 'load'
81: from /Users/service/bin/spring:15:in '<top (required)>'
' 80: from /Users/service/bin/spring:15:in 'require'
79: from /Users/service/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/binstub.rb:31:in '<top (required)>'
78: from /Users/service/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/binstub.rb:31:in 'load'
' 77: from /Users/service/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/bin/spring:49:in '<top (required)>'
76: from /Users/service/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/client.rb:30:in 'run'
75: from /Users/service/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/client/command.rb:7:in 'call'
' 74: from /Users/service/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in 'call'
73: from /Users/service/.rvm/gems/ruby-2.5.1/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in 'load'
72: from /Users/service/bin/rails:9:in '<top (required)>'
' 71: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in 'require'
70: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in 'require_with_bootsnap_lfi'
69: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in 'register'
' 68: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in 'block in require_with_bootsnap_lfi'
67: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in 'require'
66: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/commands.rb:18:in '<main>'
' 65: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/command.rb:46:in 'invoke'
64: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/command/base.rb:65:in 'perform'
63: from /Users/service/.rvm/gems/ruby-2.5.1/gems/thor-0.20.0/lib/thor.rb:387:in 'dispatch'
' 62: from /Users/service/.rvm/gems/ruby-2.5.1/gems/thor-0.20.0/lib/thor/invocation.rb:126:in 'invoke_command'
61: from /Users/service/.rvm/gems/ruby-2.5.1/gems/thor-0.20.0/lib/thor/command.rb:27:in 'run'
60: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:142:in 'perform'
' 59: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:142:in 'tap'
58: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:147:in 'block in perform'
57: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:53:in 'start'
' 56: from /Users/service/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/server.rb:283:in 'start'
55: from /Users/service/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/server.rb:354:in 'wrapped_app'
54: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:27:in 'app'
' 53: from /Users/service/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/server.rb:219:in 'app'
52: from /Users/service/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/server.rb:319:in 'build_app_and_options_from_config'
51: from /Users/service/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/builder.rb:40:in 'parse_file'
' 50: from /Users/service/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/builder.rb:49:in 'new_from_string'
49: from /Users/service/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/builder.rb:49:in 'eval'
48: from config.ru:in '<main>'
' 47: from config.ru:in 'new'
46: from /Users/service/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/builder.rb:55:in 'initialize'
45: from /Users/service/.rvm/gems/ruby-2.5.1/gems/rack-2.0.5/lib/rack/builder.rb:55:in 'instance_eval'
' 44: from config.ru:3:in 'block in <main>'
43: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:44:in 'require_relative'
42: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in 'require'
' 41: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in 'require_with_bootsnap_lfi'
40: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in 'register'
39: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in 'block in require_with_bootsnap_lfi'
' 38: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in 'require'
37: from /Users/service/config/environment.rb:5:in '<main>'
36: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application.rb:361:in 'initialize!'
' 35: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:60:in 'run_initializers'
34: from /Users/service/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:205:in 'tsort_each'
33: from /Users/service/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:226:in 'tsort_each'
' 32: from /Users/service/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in 'each_strongly_connected_component'
31: from /Users/service/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in 'call'
30: from /Users/service/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in 'each'
' 29: from /Users/service/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:349:in 'block in each_strongly_connected_component'
28: from /Users/service/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:431:in 'each_strongly_connected_component_from'
27: from /Users/service/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:350:in 'block (2 levels) in each_strongly_connected_component'
' 26: from /Users/service/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:228:in 'block in tsort_each'
25: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:61:in 'block in run_initializers'
24: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:32:in 'run'
' 23: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/initializable.rb:32:in 'instance_exec'
22: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/finisher.rb:69:in 'block in <module:Finisher>'
21: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/application/finisher.rb:69:in 'each'
' 20: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:356:in 'eager_load!'
19: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:475:in 'eager_load!'
18: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:475:in 'each'
' 17: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:477:in 'block in eager_load!'
16: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:477:in 'each'
15: from /Users/service/.rvm/gems/ruby-2.5.1/gems/railties-5.2.0/lib/rails/engine.rb:478:in 'block (2 levels) in eager_load!'
' 14: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:59:in 'depend_on'
13: from /Users/service/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies/interlock.rb:13:in 'loading'
12: from /Users/service/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/concurrency/share_lock.rb:151:in 'exclusive'
' 11: from /Users/service/.rvm/gems/ruby-2.5.1/gems/activesupport-5.2.0/lib/active_support/dependencies/interlock.rb:14:in 'block in loading'
10: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in 'require'
9: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in 'require_with_bootsnap_lfi'
' 8: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in 'register'
7: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in 'block in require_with_bootsnap_lfi'
6: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in 'require'
' 5: from /Users/service/.rvm/gems/ruby-2.5.1/gems/notifications-0.6.0/app/controllers/notifications/application_controller.rb:1:in '<main>'
4: from /Users/service/.rvm/gems/ruby-2.5.1/gems/notifications-0.6.0/app/controllers/notifications/application_controller.rb:2:in '<module:Notifications>'
3: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:42:in 'load_missing_constant'
' 2: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:53:in 'rescue in load_missing_constant'
1: from /Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:8:in 'without_bootsnap_cache'
/Users/service/.rvm/gems/ruby-2.5.1/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:53:in 'block in load_missing_constant': uninitialized constant ApplicationController (NameError)
有人知道为什么生产环境中缺少ApplicationController吗？它的api rails应用程序，所以ApplicationController Adam:service$ rails s
=> Booting Puma
=> Rails 5.2.0 application starting in development
=> Run `rails server -h` for more startup options
Puma starting in single mode...
* Version 3.11.4 (ruby 2.5.1-p57), codename: Love Song
* Min threads: 5, max threads: 5
* Environment: development
* Listening on tcp://0.0.0.0:3000
Use Ctrl-C to stop