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Ruby: 2.6.3p62 (rvm)
Rails: 6.0
OS: macOS 10.14.6
A fresh Rails 6.0 application:
$ rails new testshop2
$ cd testshop2
$ rails g controller Page index
$ rails s
=> Booting Puma
=> Rails 6.0.0 application starting in development
=> Run `rails server --help` for more startup options
Puma starting in single mode...
* Version 3.12.1 (ruby 2.6.3-p62), codename: Llamas in Pajamas
* Min threads: 5, max threads: 5
* Environment: development
* Listening on tcp://localhost:3000
Use Ctrl-C to stop
When I browse to `http://localhost:3000/page/index' the system throughs this error:
Started GET "/page/index" for ::1 at 2019-09-23 17:06:12 +0200
(0.4ms) SELECT sqlite_version(*)
Processing by PageController#index as HTML
Rendering page/index.html.erb within layouts/application
Rendered page/index.html.erb within layouts/application (Duration: 1.8ms | Allocations: 206)
[Webpacker] Compiling…
[Webpacker] Compilation failed:
error Command "webpack" not found.
Completed 500 Internal Server Error in 2021ms (ActiveRecord: 0.0ms | Allocations: 640080)
ActionView::Template::Error (Webpacker can't find application in /Users/stefan/Github/sandbox/testshop2/public/packs/manifest.json. Possible causes:
1. You want to set webpacker.yml value of compile to true for your environment
unless you are using the `webpack -w` or the webpack-dev-server.
2. webpack has not yet re-run to reflect updates.
3. You have misconfigured Webpacker's config/webpacker.yml file.
4. Your webpack configuration is not creating a manifest.
Your manifest contains:
{
}
):
6: <%= csp_meta_tag %>
7:
8: <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
9: <%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
10: </head>
11:
12: <body>
app/views/layouts/application.html.erb:9
How can I fix this? It says error Command "webpack" not found. but shouldn't Rails install everything needed automatically?
906
I faced the same issue. And tried running bundle exec rails webpacker:install as suggested by @AFOC 's answer. Then I realized my node version wasn't compatible with rails/webpacker. Then used node 12.x. it works.
I also I retried by deleting the whole app, creating the app again, did not face the issue again, it worked the first time. So in my case, it was node version.
158
EDIT:
This is one of my first posts, so forgive me if I get the posting conventions wrong.
The problem comes from the version of node on your local computer. When you created your rails app, you probably had an error like this pop up:
The JavaScript app source directory already exists
apply /Users/mconiaris/.rbenv/versions/2.6.4/lib/ruby/gems/2.6.0/gems/webpacker-4.0.7/lib/install/binstubs.rb
Copying binstubs
exist bin
create bin/webpack
create bin/webpack-dev-server
append .gitignore
Installing all JavaScript dependencies [4.0.7]
run yarn add @rails/webpacker from "."
yarn add v1.17.3
info No lockfile found.
[1/4] 🔍 Resolving packages...
warning @rails/webpacker > postcss-preset-env > postcss-color-functional-notation > postcss-values-parser > [email protected]: I wrote this module a very long time ago; you should use something else.
[2/4] 🚚 Fetching packages...
error [email protected]: The engine "node" is incompatible with this module. Expected version "6.* || 8.* || >= 10.*". Got "9.4.0"
error Found incompatible module.
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.
In my case, I had version 9.4.0 of node installed on my computer, and that was the one version the get-caller-file package did not want to work with.
To fix the problem, first confirm your version of node to ensure that it's not 9.x.x:
node -v
Update node (I use nvm, but there are other ways on GitHub on the node Website).
nvm install node # "node" is an alias for the latest version
Check the version again. If it's 12.10 or higher, you should be all set.
Go start another brand new rails project and it should work fine.
Good luck!
8
I had to same challenge when trying to set up a new Rails 6 application in Ubuntu 20.04.
When I start the rails server, I get the error:
error Command "webpack" not found.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
09:17:58 webpacker.1 | exited with code 1
09:17:58 system | sending SIGTERM to all processes
09:17:58 watcher.1 | exited with code 1
09:17:58 web.1 | terminated by SIGTERM
Here's how I fixed it:
The issue for me was due to poor internet connectivity, which did not permit the full installation of webpacker and all of its dependencies. So each time I run the command:
bundle exec rails webpacker:install
I get this output:
Installing all JavaScript dependencies [4.3.0]
run yarn add @rails/[email protected] from "."
yarn add v1.22.5
[1/4] Resolving packages...
info There appears to be trouble with your network connection. Retrying...
info There appears to be trouble with your network connection. Retrying...
I simply had to move to an area with better internet connectivity, and then I ran the command:
bundle exec rails webpacker:install
OR
rails webpacker:install
This time, it ran successfully and installed webpacker and all of its dependencies, and it gave me this final output:
[4/4] Building fresh packages...
success Saved 1 new dependency.
info Direct dependencies
└─ [email protected]
info All dependencies
└─ [email protected]
Done in 5.90s.
That's all.
I hope this helps
7
Try doing :
bundle exec rails webpacker:install
if it is still not working than try:
npm install
yarn install check--files
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