After I added : in front of with

Juliuss-MacBook-Pro:sample_app juliusosagiede$ heroku logs
2018-06-04T19:58:51.712325+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=rocky-ravine-35505.herokuapp.com request_id=bda5d86f-f8e7-4f28-9507-22694bab1bc0 fwd="66.234.246.34" dyno= connect= service= status=503 bytes= protocol=https
2018-06-04T19:58:54.033918+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=rocky-ravine-35505.herokuapp.com request_id=cb1c3933-b079-4b90-a664-fbcadcb387cc fwd="66.234.246.34" dyno= connect= service= status=503 bytes= protocol=https
2018-06-04T19:59:03.391890+00:00 heroku[web.1]: State changed from crashed to starting
2018-06-04T19:59:08.256629+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 21875 -e production`
2018-06-04T19:59:15.960613+00:00 heroku[web.1]: Process exited with status 1
2018-06-04T19:59:15.824046+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activestorage-5.2.0/app/models/active_storage/blob/representable.rb:7:in `block in <module:Representable>'
2018-06-04T19:59:15.823986+00:00 app[web.1]: /app/vendor/bundle/ruby/2.5.0/gems/activerecord-5.2.0/lib/active_record/dynamic_matchers.rb:22:in `method_missing': undefined method `has_one_attached' for #<Class:0x0000000005438fa0> (NoMethodError)
2018-06-04T19:59:15.824076+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activestorage-5.2.0/app/models/active_storage/blob.rb:16:in `<main>'
2018-06-04T19:59:15.824053+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/concern.rb:122:in `class_eval'
2018-06-04T19:59:15.824098+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:370:in `block in require_or_load'
2018-06-04T19:59:15.824072+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/concern.rb:122:in `append_features'
2018-06-04T19:59:15.824130+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:326:in `depend_on'
2018-06-04T19:59:15.824127+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:37:in `load_interlock'
2018-06-04T19:59:15.824124+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/concurrency/share_lock.rb:151:in `exclusive'
2018-06-04T19:59:15.824128+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:348:in `require_or_load'
2018-06-04T19:59:15.824131+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:59:in `depend_on'
2018-06-04T19:59:15.824122+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies/interlock.rb:14:in `block in loading'
2018-06-04T19:59:15.824143+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/engine.rb:477:in `block in eager_load!'
2018-06-04T19:59:15.824133+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:242:in `require_dependency'
2018-06-04T19:59:15.824074+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activestorage-5.2.0/app/models/active_storage/blob.rb:23:in `include'
2018-06-04T19:59:15.824145+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/engine.rb:475:in `each'
2018-06-04T19:59:15.824150+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/engine.rb:475:in `eager_load!'
2018-06-04T19:59:15.824152+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/engine.rb:356:in `eager_load!'
2018-06-04T19:59:15.824155+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/application/finisher.rb:69:in `block in <module:Finisher>'
2018-06-04T19:59:15.824156+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/initializable.rb:32:in `instance_exec'
2018-06-04T19:59:15.824161+00:00 app[web.1]: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:228:in `block in tsort_each'
2018-06-04T19:59:15.824125+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies/interlock.rb:13:in `loading'
2018-06-04T19:59:15.824075+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activestorage-5.2.0/app/models/active_storage/blob.rb:23:in `<class:Blob>'
2018-06-04T19:59:15.824154+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/application/finisher.rb:69:in `each'
2018-06-04T19:59:15.824158+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/initializable.rb:32:in `run'
2018-06-04T19:59:15.824180+00:00 app[web.1]: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in `call'
2018-06-04T19:59:15.824181+00:00 app[web.1]: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in `each_strongly_connected_component'
2018-06-04T19:59:15.824078+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
2018-06-04T19:59:15.824167+00:00 app[web.1]: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:431:in `each_strongly_connected_component_from'
2018-06-04T19:59:15.824081+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
2018-06-04T19:59:15.824190+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/application.rb:361:in `initialize!'
2018-06-04T19:59:15.824084+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
2018-06-04T19:59:15.824196+00:00 app[web.1]: from /app/config/environment.rb:5:in `<main>'
2018-06-04T19:59:15.824087+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:249:in `load_dependency'
2018-06-04T19:59:15.824201+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
2018-06-04T19:59:15.824203+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
2018-06-04T19:59:15.824080+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
2018-06-04T19:59:15.824159+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/initializable.rb:61:in `block in run_initializers'
2018-06-04T19:59:15.824083+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
2018-06-04T19:59:15.824100+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:37:in `block in load_interlock'
2018-06-04T19:59:15.824086+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `block in require'
2018-06-04T19:59:15.824088+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `require'
2018-06-04T19:59:15.824142+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/engine.rb:477:in `each'
2018-06-04T19:59:15.824219+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:44:in `require_relative'
2018-06-04T19:59:15.824204+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
2018-06-04T19:59:15.824208+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
2018-06-04T19:59:15.824214+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:249:in `load_dependency'
2018-06-04T19:59:15.824209+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
2018-06-04T19:59:15.824218+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `require'
2018-06-04T19:59:15.824165+00:00 app[web.1]: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
2018-06-04T19:59:15.824134+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/engine.rb:478:in `block (2 levels) in eager_load!'
2018-06-04T19:59:15.824286+00:00 app[web.1]: from config.ru:in `<main>'
2018-06-04T19:59:15.824223+00:00 app[web.1]: from config.ru:3:in `block in <main>'
2018-06-04T19:59:15.824296+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.0.5/lib/rack/server.rb:319:in `build_app_and_options_from_config'
2018-06-04T19:59:15.824288+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.0.5/lib/rack/builder.rb:49:in `eval'
2018-06-04T19:59:15.824310+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:147:in `block in perform'
2018-06-04T19:59:15.824294+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.0.5/lib/rack/builder.rb:40:in `parse_file'
2018-06-04T19:59:15.824168+00:00 app[web.1]: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:349:in `block in each_strongly_connected_component'
2018-06-04T19:59:15.824243+00:00 app[web.1]: from config.ru:in `new'
2018-06-04T19:59:15.824233+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.0.5/lib/rack/builder.rb:55:in `initialize'
2018-06-04T19:59:15.824175+00:00 app[web.1]: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:347:in `each'
2018-06-04T19:59:15.824297+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.0.5/lib/rack/server.rb:219:in `app'
2018-06-04T19:59:15.860738+00:00 app[web.1]: => Booting Puma
2018-06-04T19:59:15.824183+00:00 app[web.1]: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:226:in `tsort_each'
2018-06-04T19:59:15.824318+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
2018-06-04T19:59:15.824184+00:00 app[web.1]: from /app/vendor/ruby-2.5.1/lib/ruby/2.5.0/tsort.rb:205:in `tsort_each'
2018-06-04T19:59:15.824188+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/initializable.rb:60:in `run_initializers'
2018-06-04T19:59:15.824333+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands.rb:18:in `<main>'
2018-06-04T19:59:15.824342+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
2018-06-04T19:59:15.860748+00:00 app[web.1]: => Run `rails server -h` for more startup options
2018-06-04T19:59:15.860749+00:00 app[web.1]: Exiting
2018-06-04T19:59:15.824213+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `block in require'
2018-06-04T19:59:15.824336+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
2018-06-04T19:59:15.824290+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.0.5/lib/rack/builder.rb:49:in `new_from_string'
2018-06-04T19:59:15.824299+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:27:in `app'
2018-06-04T19:59:15.824352+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
2018-06-04T19:59:15.824231+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.0.5/lib/rack/builder.rb:55:in `instance_eval'
2018-06-04T19:59:15.824317+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:142:in `perform'
2018-06-04T19:59:15.824303+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.0.5/lib/rack/server.rb:283:in `start'
2018-06-04T19:59:15.824345+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
2018-06-04T19:59:15.824321+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
2018-06-04T19:59:15.824327+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/command/base.rb:65:in `perform'
2018-06-04T19:59:15.824355+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `block in require'
2018-06-04T19:59:15.860746+00:00 app[web.1]: => Rails 5.2.0 application starting in production
2018-06-04T19:59:15.824302+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/rack-2.0.5/lib/rack/server.rb:354:in `wrapped_app'
2018-06-04T19:59:15.824324+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
2018-06-04T19:59:15.824307+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:53:in `start'
2018-06-04T19:59:15.824339+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
2018-06-04T19:59:15.824359+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:249:in `load_dependency'
2018-06-04T19:59:15.824313+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:142:in `tap'
2018-06-04T19:59:15.824330+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/railties-5.2.0/lib/rails/command.rb:46:in `invoke'
2018-06-04T19:59:15.824362+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.0/lib/active_support/dependencies.rb:283:in `require'
2018-06-04T19:59:15.824363+00:00 app[web.1]: from bin/rails:9:in `<main>'
2018-06-04T19:59:17.222700+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=rocky-ravine-35505.herokuapp.com request_id=ba57b71c-0d39-4fc3-a491-238143060e7c fwd="66.234.246.34" dyno= connect= service= status=503 bytes= protocol=https
2018-06-04T19:59:17.398549+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=rocky-ravine-35505.herokuapp.com request_id=c004b225-6c69-4717-a1e4-bf601f1d2434 fwd="66.234.246.34" dyno= connect= service= status=503 bytes= protocol=https