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** ERROR: directory is already being watched! ** #34912

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gr1d99 opened this issue Jan 10, 2019 · 3 comments
Closed

** ERROR: directory is already being watched! ** #34912

gr1d99 opened this issue Jan 10, 2019 · 3 comments

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@gr1d99
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gr1d99 commented Jan 10, 2019 •
edited

Someone help me get rid of this errors

Steps to reproduce

  • create a new rails api only application rails new sample_api --api
  • install create-react-app
  • create a new react app in the root directory of the new rails api app create-react-app client
  • start rails app bin/rails s

Expected behavior

| => bin/rails s
=> Booting Puma
=> Rails 5.2.2 application starting in development 
=> Run `rails server -h` for more startup options
Puma starting in single mode...
* Version 3.12.0 (ruby 2.5.1-p57), codename: Llamas in Pajamas
* Min threads: 5, max threads: 5
* Environment: development
* Listening on tcp://0.0.0.0:3000
Use Ctrl-C to stop

Actual behavior

| => bin/rails s
=> Booting Puma
=> Rails 5.2.2 application starting in development 
=> Run `rails server -h` for more startup options
Puma starting in single mode...
* Version 3.12.0 (ruby 2.5.1-p57), codename: Llamas in Pajamas
* Min threads: 5, max threads: 5
* Environment: development
* Listening on tcp://0.0.0.0:3000
Use Ctrl-C to stop
        ** ERROR: directory is already being watched! **

        Directory: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/.bin/terser-webpack-plugin

        is already being watched through: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/terser-webpack-plugin

        MORE INFO: https://github.com/guard/listen/wiki/Duplicate-directory-errors
        ** ERROR: directory is already being watched! **

        Directory: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/.bin/url-loader

        is already being watched through: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/url-loader

        MORE INFO: https://github.com/guard/listen/wiki/Duplicate-directory-errors
        ** ERROR: directory is already being watched! **

        Directory: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/.bin/mini-css-extract-plugin

        is already being watched through: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/mini-css-extract-plugin

        MORE INFO: https://github.com/guard/listen/wiki/Duplicate-directory-errors
        ** ERROR: directory is already being watched! **

        Directory: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/.bin/file-loader

        is already being watched through: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/file-loader

        MORE INFO: https://github.com/guard/listen/wiki/Duplicate-directory-errors
        ** ERROR: directory is already being watched! **

        Directory: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/react-scripts/node_modules/.bin/terser-webpack-plugin

        is already being watched through: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/terser-webpack-plugin

        MORE INFO: https://github.com/guard/listen/wiki/Duplicate-directory-errors
        ** ERROR: directory is already being watched! **

        Directory: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/react-scripts/node_modules/.bin/url-loader

        is already being watched through: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/url-loader

        MORE INFO: https://github.com/guard/listen/wiki/Duplicate-directory-errors
        ** ERROR: directory is already being watched! **

        Directory: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/react-scripts/node_modules/.bin/mini-css-extract-plugin

        is already being watched through: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/mini-css-extract-plugin

        MORE INFO: https://github.com/guard/listen/wiki/Duplicate-directory-errors
        ** ERROR: directory is already being watched! **

        Directory: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/react-scripts/node_modules/.bin/file-loader

        is already being watched through: /Users/gr1d99/Projects/ruby/rails/untitled3/client/node_modules/file-loader

        MORE INFO: https://github.com/guard/listen/wiki/Duplicate-directory-errors

System configuration

Rails version: 5.2.2

Ruby version: 2.5.1-p57

OS macOS High Sierra version 10.13.2
@tabishiqbal
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Please see this thread. #32700

@y-yagi
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y-yagi commented Jan 11, 2019

Thanks for your report. This already fixed by #33822. Please see #32700 (comment) for a temporary solution.

@y-yagi y-yagi closed this as completed Jan 11, 2019
@rolandoalvarado
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try this, it solves my problem. https://github.com/guard/listen/wiki/Duplicate-directory-errors

y-yagi added a commit to y-yagi/rails that referenced this issue Jun 2, 2019
@y-yagi
Remove spring-watcher-listen from default Gemfile
1ff98ed 
`spring-watcher-listen` watch application root by default.
https://github.com/jonleighton/spring-watcher-listen/blob/c4bfe15805867e229588e4b776a7b87438137094/lib/spring/watcher/listen.rb#L58

This is necessary to watch the file (e.g. `.ruby-version`) in the
application root.

By this `node_modules` also be watched, and it is a possibility to be
shown a warning by `listen`.
Related to rails#32700, rails#34912, rails/webpacker#1990.

`listen` watches directory recursive by default, and it cannot avoid it.
guard/listen#111

So If this warning happens, the only workaround the user can do is remove
the gem.

The issue is likely to occur more frequently in Rails 6 because
`rails new` runs `webpacker:install` by default. Because of such a
state, I think that we should not recommend to use
`spring-watcher-listen`.

Spring has polling watcher, restart process works without this
`spring-watcher-listen`.
Because of polling base, CPU load may be higher than listen base. Still
I think that it is better than the warning comes out.
@y-yagi y-yagi mentioned this issue Jun 2, 2019
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4 participants
@y-yagi @rolandoalvarado @tabishiqbal @gr1d99