Webpacker Error While Creating Ruby On Rails App

Question

$ rails 6.0.2 new sample_app2

.
.
.
Using web-console 4.0.1
Using webdrivers 4.1.3
Using webpacker 4.2.2
Bundle complete! 17 Gemfile dependencies, 75 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.
run bundle binstubs bundler
The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby but the dependency is only for x86-mingw32, x86-mswin32, x64-mingw32, java. To add those platforms to the bundle, run `bundle lock --add-platform x86-mingw32 x86-mswin32 x64-mingw32 java`.
Skipped bundle since it already exists.
If you want to overwrite skipped stubs, use --force.
run bundle exec spring binstub --all
* bin/rake: Spring inserted
* bin/rails: Spring inserted
rails webpacker:install
Traceback (most recent call last):
4: from /home/emsawy/.rvm/gems/ruby-2.6.3/bin/ruby_executable_hooks:24:in `'
3: from /home/emsawy/.rvm/gems/ruby-2.6.3/bin/ruby_executable_hooks:24:in `eval'
2: from /home/emsawy/.rvm/gems/ruby-2.6.3/bin/yarn:23:in `'
1: from /home/emsawy/.rvm/rubies/ruby-2.6.3/lib/ruby/site_ruby/2.6.0/bundler/rubygems_integration.rb:400:in `block in replace_bin_path'
/home/emsawy/.rvm/rubies/ruby-2.6.3/lib/ruby/site_ruby/2.6.0/bundler/rubygems_integration.rb:372:in `block in replace_bin_path': can't find executable yarn for gem yarn. yarn is not currently included in the bundle, perhaps you meant to add it to your Gemfile? (Gem::Exception)
Yarn not installed. Please download and install Yarn from https://yarnpkg.com/lang/en/docs/install/

Also after performing

 Yarn not installed. Please download and install Yarn from https://yarnpkg.com/lang/en/docs/install/

I got the same result

   

     $ yarn -v
     [DEPRECATION] The trollop gem has been renamed to optimist
     and will no longer be supported. Please switch to optimist
     as soon as possible. Yarn v0.1.1 2011 Jesper Kjeldgaard

    $ ruby -v
         ruby 2.6.3p62 (2019-04-16 revision 67580) [x86_64-linux]

    $ rails -v
         Rails 6.0.2.1

So did you install yarn? as it directed you to site: yarnpkg.com/lang/en/docs/install/#debian-stable — Nezir
– Nezir, Commented Dec 19, 2019 at 14:14
$ yarn install [DEPRECATION] The trollop gem has been renamed to optimist and will no longer be supported. Please switch to optimist as soon as possible. — Mohamed Emad Emsawy
– Mohamed Emad Emsawy, Commented Dec 19, 2019 at 14:24

nuaky · Accepted Answer · 2019-12-19 16:13:14Z

3

You installed yarn as a gem https://rubygems.org/gems/yarn and this is wrong. Now you should do:

Uninstall this gem, gem uninstall yarn
On mac os brew install yarn if other platform then look here: https://yarnpkg.com/lang/en/docs/install/#debian-stable
Check version, should be something like:

yarn -v

1.21.1

answered Dec 19, 2019 at 16:13

nuaky

2,0961 gold badge16 silver badges21 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Mohamed Emad Emsawy Over a year ago

i performed these steps in user mode and got work well thanks :)

Mohamed Emad Emsawy Over a year ago

but what difference between yarn and gem yarn?

nuaky Over a year ago

gem yarn is something completely different -Yarn is a multi-process webserver written in Ruby 1.9 by Jesper Kjeldgaard.. While yarn you need is a dependency manager.

RobC · Accepted Answer · 2021-06-18 07:51:18Z

0

Got the same error.

First uninstall yarn by commanding gem uninstall yarn.

It will ask yn, Enter yn
Next run: command gem update
Finally check yarn --version

edited Jun 18, 2021 at 7:51

RobC

25.3k21 gold badges87 silver badges88 bronze badges

answered Jun 17, 2021 at 10:41

user16251777

1

Collectives™ on Stack Overflow

Webpacker Error While Creating Ruby On Rails App

2 Answers 2

3 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related