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Yarn installation requirement missing in Getting Started guide #38322

Closed
potentialize opened this issue Jan 27, 2020 · 4 comments · Fixed by #38477
Closed

Yarn installation requirement missing in Getting Started guide #38322

potentialize opened this issue Jan 27, 2020 · 4 comments · Fixed by #38477

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@potentialize
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potentialize commented Jan 27, 2020 •
edited

I am new to Rails, so I followed this guide: https://guides.rubyonrails.org/getting_started.html. The first couple of times rails server did not work. Turns out that Rails depends on Yarn, and since Yarn was not installed on my computer, rails new could not set up my project properly.

Steps to reproduce

Set up a new Rails project on a computer that does not have Yarn installed.

Expected behavior

Follow the Getting Started guide, Rails works without an issue.

Actual behavior

Follow the Getting Started guide, rails server spits a RuntimeError because it depends on Yarn. Since Yarn was not installed on my computer, rails new could not set up Rails properly for me.

System configuration

Rails version: Rails 6.0.2.1

Ruby version: ruby 2.6.4p104 (2019-08-28 revision 67798) [x86_64-linux]

Stack trace (for completion)

$ rails server
=> Booting Puma
=> Rails 6.0.2.1 application starting in development 
=> Run `rails server --help` for more startup options
Exiting
Traceback (most recent call last):
	81: from bin/rails:3:in `<main>'
	80: from bin/rails:3:in `load'
	79: from /home/bruno/potentialize/rails_example/blog/bin/spring:15:in `<top (required)>'
	78: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
	77: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
	76: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `<top (required)>'
	75: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `load'
	74: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/bin/spring:49:in `<top (required)>'
	73: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client.rb:30:in `run'
	72: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/command.rb:7:in `call'
	71: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `call'
	70: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `load'
	69: from /home/bruno/potentialize/rails_example/blog/bin/rails:9:in `<top (required)>'
	68: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `require'
	67: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:291:in `load_dependency'
	66: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `block in require'
	65: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	64: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
	63: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
	62: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
	61: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
	60: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands.rb:18:in `<main>'
	59: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/command.rb:46:in `invoke'
	58: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/command/base.rb:69:in `perform'
	57: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
	56: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
	55: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
	54: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:138:in `perform'
	53: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:138:in `tap'
	52: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:147:in `block in perform'
	51: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:37:in `start'
	50: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:77:in `log_to_stdout'
	49: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/server.rb:424:in `wrapped_app'
	48: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/server.rb:251:in `app'
	47: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/server.rb:351:in `build_app_and_options_from_config'
	46: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:40:in `parse_file'
	45: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:59:in `load_file'
	44: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:65:in `new_from_string'
	43: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:65:in `eval'
	42: from config.ru:in `<main>'
	41: from config.ru:in `new'
	40: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:71:in `initialize'
	39: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:71:in `instance_eval'
	38: from config.ru:3:in `block in <main>'
	37: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:48:in `require_relative'
	36: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `require'
	35: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:291:in `load_dependency'
	34: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `block in require'
	33: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/zeitwerk-2.2.2/lib/zeitwerk/kernel.rb:23:in `require'
	32: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	31: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
	30: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
	29: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
	28: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
	27: from /home/bruno/potentialize/rails_example/blog/config/environment.rb:5:in `<main>'
	26: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/application.rb:363:in `initialize!'
	25: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/initializable.rb:60:in `run_initializers'
	24: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:205:in `tsort_each'
	23: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:226:in `tsort_each'
	22: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:347:in `each_strongly_connected_component'
	21: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:347:in `call'
	20: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:347:in `each'
	19: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:349:in `block in each_strongly_connected_component'
	18: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:431:in `each_strongly_connected_component_from'
	17: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
	16: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:228:in `block in tsort_each'
	15: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/initializable.rb:61:in `block in run_initializers'
	14: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/initializable.rb:32:in `run'
	13: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/initializable.rb:32:in `instance_exec'
	12: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/railtie.rb:84:in `block in <class:Engine>'
	11: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker.rb:35:in `bootstrap'
	10: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/commands.rb:25:in `bootstrap'
	 9: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/manifest.rb:18:in `refresh'
	 8: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/manifest.rb:83:in `load'
	 7: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:51:in `public_manifest_path'
	 6: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:47:in `public_output_path'
	 5: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:43:in `public_path'
	 4: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:84:in `fetch'
	 3: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:88:in `data'
	 2: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:92:in `load'
	 1: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:92:in `read'
/home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:92:in `read': No such file or directory @ rb_sysopen - /home/bruno/potentialize/rails_example/blog/config/webpacker.yml (Errno::ENOENT)
	80: from bin/rails:3:in `<main>'
	79: from bin/rails:3:in `load'
	78: from /home/bruno/potentialize/rails_example/blog/bin/spring:15:in `<top (required)>'
	77: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
	76: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
	75: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `<top (required)>'
	74: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `load'
	73: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/bin/spring:49:in `<top (required)>'
	72: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client.rb:30:in `run'
	71: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/command.rb:7:in `call'
	70: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `call'
	69: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `load'
	68: from /home/bruno/potentialize/rails_example/blog/bin/rails:9:in `<top (required)>'
	67: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `require'
	66: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:291:in `load_dependency'
	65: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `block in require'
	64: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	63: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
	62: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
	61: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
	60: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
	59: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands.rb:18:in `<main>'
	58: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/command.rb:46:in `invoke'
	57: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/command/base.rb:69:in `perform'
	56: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
	55: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
	54: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
	53: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:138:in `perform'
	52: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:138:in `tap'
	51: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:147:in `block in perform'
	50: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:37:in `start'
	49: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:77:in `log_to_stdout'
	48: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/server.rb:424:in `wrapped_app'
	47: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/server.rb:251:in `app'
	46: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/server.rb:351:in `build_app_and_options_from_config'
	45: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:40:in `parse_file'
	44: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:59:in `load_file'
	43: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:65:in `new_from_string'
	42: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:65:in `eval'
	41: from config.ru:in `<main>'
	40: from config.ru:in `new'
	39: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:71:in `initialize'
	38: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/rack-2.1.1/lib/rack/builder.rb:71:in `instance_eval'
	37: from config.ru:3:in `block in <main>'
	36: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:48:in `require_relative'
	35: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `require'
	34: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:291:in `load_dependency'
	33: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `block in require'
	32: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/zeitwerk-2.2.2/lib/zeitwerk/kernel.rb:23:in `require'
	31: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
	30: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
	29: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
	28: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
	27: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
	26: from /home/bruno/potentialize/rails_example/blog/config/environment.rb:5:in `<main>'
	25: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/application.rb:363:in `initialize!'
	24: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/initializable.rb:60:in `run_initializers'
	23: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:205:in `tsort_each'
	22: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:226:in `tsort_each'
	21: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:347:in `each_strongly_connected_component'
	20: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:347:in `call'
	19: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:347:in `each'
	18: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:349:in `block in each_strongly_connected_component'
	17: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:431:in `each_strongly_connected_component_from'
	16: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
	15: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/2.6.0/tsort.rb:228:in `block in tsort_each'
	14: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/initializable.rb:61:in `block in run_initializers'
	13: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/initializable.rb:32:in `run'
	12: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/railties-6.0.2.1/lib/rails/initializable.rb:32:in `instance_exec'
	11: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/railtie.rb:84:in `block in <class:Engine>'
	10: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker.rb:35:in `bootstrap'
	 9: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/commands.rb:25:in `bootstrap'
	 8: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/manifest.rb:18:in `refresh'
	 7: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/manifest.rb:83:in `load'
	 6: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:51:in `public_manifest_path'
	 5: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:47:in `public_output_path'
	 4: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:43:in `public_path'
	 3: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:84:in `fetch'
	 2: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:88:in `data'
	 1: from /home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:91:in `load'
/home/bruno/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.2.2/lib/webpacker/configuration.rb:95:in `rescue in load': Webpacker configuration file not found /home/bruno/potentialize/rails_example/blog/config/webpacker.yml. Please run rails webpacker:install Error: No such file or directory @ rb_sysopen - /home/bruno/potentialize/rails_example/blog/config/webpacker.yml (RuntimeError)
@NeilsC
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NeilsC commented Feb 4, 2020

Experiencing the same issue.

ruby 2.6.5p114
rails 6.0.2.1

@fede-moya
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fede-moya commented Feb 11, 2020 •
edited

Experiencing the same issue. I think the same applies for NodeJS. Seems like the following section of the getting started guide needs an update

Before you install Rails, you should check to make sure that your system has the proper prerequisites installed. These include Ruby and SQLite3.

do you guys agree ? @NeilsC @potentialize

@jakeNiemiec
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read': No such file or directory @ rb_sysopen - /home/bruno/potentialize/rails_example/blog/config/webpacker.yml (Errno::ENOENT)

You might just need to run bundle exec rails webpacker:install or create webpacker.yml yourself.

@cur33
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cur33 commented Feb 14, 2020

read': No such file or directory @ rb_sysopen - /home/bruno/potentialize/rails_example/blog/config/webpacker.yml (Errno::ENOENT)

You might just need to run bundle exec rails webpacker:install or create webpacker.yml yourself.

I had the same problem, and this is the solution. However, the real problem was that running rails webpacker:install also failed because yarn wasn't installed. From the problem description, I believe the OP already realizes this. The true issue here, as OP mentioned, is that the guide doesn't mention installing yarn. It only says to ensure that you have ruby and sqlite3 installed, and after that, it jumps straight into creating a new Rails project.

@shime shime mentioned this issue Feb 17, 2020
Merged
shime added a commit to shime/rails that referenced this issue Feb 20, 2020
@shime
Add Webpacker dependencies to the getting started guide
cdef8b4 
Closes rails#38322.
@yhoiseth yhoiseth mentioned this issue Feb 27, 2020
Closed
@jonathanhefner jonathanhefner mentioned this issue Apr 16, 2020
Closed
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Add Webpacker dependencies to the getting started guide shime/rails
5 participants
@NeilsC @cur33 @fede-moya @jakeNiemiec @potentialize