Uglifier::Error: - Solution: Switch to terser #185

rgaufman · 2022-05-24T20:57:35Z

Hi there,

I am using:

Ruby 3.1.2p20
Rails 7.0.3
Uglifier 4.2.0

In a previous version of Rails/Ruby (Rails 6 on Ruby 3.0), it was working correctly. However now I just see this:

$ RAILS_ENV=production bundle exec rails assets:precompile
autoprefixer: /Users/hackeron/Development/Tether/timeline/app/assets/stylesheets/application_dark_theme.scss:26033:3: Replace color-adjust to print-color-adjust. The color-adjust shorthand is currently deprecated.
rails aborted!
Uglifier::Error:

Tasks: TOP => assets:precompile
(See full trace by running task with --trace)

When I run with trace, I see this:

$ RAILS_ENV=production bundle exec rails assets:precompile --trace
** Invoke assets:precompile (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
** Execute assets:precompile
autoprefixer: /Users/hackeron/Development/Tether/timeline/app/assets/stylesheets/application_dark_theme.scss:26033:3: Replace color-adjust to print-color-adjust. The color-adjust shorthand is currently deprecated.
rails aborted!
Uglifier::Error:
/usr/local/lib/ruby/gems/3.1.0/gems/uglifier-4.2.0/lib/uglifier.rb:291:in `parse_result'
/usr/local/lib/ruby/gems/3.1.0/gems/uglifier-4.2.0/lib/uglifier.rb:221:in `run_uglifyjs'
/usr/local/lib/ruby/gems/3.1.0/gems/uglifier-4.2.0/lib/uglifier.rb:166:in `compile'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/compressing.rb:84:in `block in js_compressor='
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:84:in `call_processor'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:66:in `block in call_processors'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:65:in `reverse_each'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:65:in `call_processors'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:182:in `load_from_unloaded'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:59:in `block in load'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:337:in `fetch_asset_from_dependency_cache'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:43:in `load'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/cached_environment.rb:44:in `load'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/bundle.rb:32:in `block in call'
/usr/local/Cellar/ruby/3.1.2/lib/ruby/3.1.0/set.rb:511:in `each_key'
/usr/local/Cellar/ruby/3.1.2/lib/ruby/3.1.0/set.rb:511:in `each'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/bundle.rb:31:in `call'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:84:in `call_processor'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:66:in `block in call_processors'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:65:in `reverse_each'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:65:in `call_processors'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:182:in `load_from_unloaded'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:59:in `block in load'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:337:in `fetch_asset_from_dependency_cache'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:43:in `load'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/cached_environment.rb:44:in `load'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/base.rb:81:in `find_asset'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/base.rb:88:in `find_all_linked_assets'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/manifest.rb:125:in `each'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/manifest.rb:125:in `to_a'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/manifest.rb:125:in `block (2 levels) in find'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/safe_task_executor.rb:24:in `block in execute'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb:47:in `block in synchronize'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb:47:in `synchronize'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb:47:in `synchronize'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/safe_task_executor.rb:22:in `execute'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/promise.rb:564:in `block in realize'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:352:in `run_task'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:343:in `block (3 levels) in create_worker'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:334:in `loop'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:334:in `block (2 levels) in create_worker'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:333:in `catch'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:333:in `block in create_worker'
Tasks: TOP => assets:precompile

The autoprefixer warning shows up when I disable uglifier too and doesn't seem to be related to this.

I can't for the life of me figure out what's wrong... any ideas how to troubleshoot this or what could be going wrong?

The text was updated successfully, but these errors were encountered:

puneetpandey · 2022-05-26T07:43:05Z

I am getting the same error during rake assets:precompile when deploying my Rails application to Elastic Beanstalk.

I am using:

Ruby: 2.7.5
Rails: 7.0.0
Uglifier: 4.2.0
sprockets-rails (3.4.2)

[INFO] Running command /bin/su webapp -c bundle exec /opt/elasticbeanstalk/config/private/checkforraketask.rb assets:precompile
[INFO] Found assets:precompile task in Rakefile
[INFO] Running command /bin/su webapp -c bundle exec rake assets:precompile
[INFO] /var/app/staging/app/models/user.rb:74: warning: key :unless is duplicated and overwritten on line 74
I, INFO -- : Writing /var/app/staging/public/assets/base-e93877bbc318b48cb1dc6dd89b3ed50cb854f5b0ed7cbb3c611ef086b54d0abd.js
I, [2022-05-24T14:49:20.044390 #1920]  INFO -- : Writing /var/app/staging/public/assets/base-e93877bbc318b48cb1dc6dd89b3ed50cb854f5b0ed7cbb3c611ef086b54d0abd.js.gz
rake aborted!
Uglifier::Error: 
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/uglifier-4.2.0/lib/uglifier.rb:291:in `parse_result'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/uglifier-4.2.0/lib/uglifier.rb:221:in `run_uglifyjs'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/uglifier-4.2.0/lib/uglifier.rb:166:in `compile'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/compressing.rb:65:in `block in js_compressor='
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/legacy_proc_processor.rb:31:in `call'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/processor_utils.rb:75:in `call_processor'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/processor_utils.rb:57:in `block in call_processors'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/processor_utils.rb:56:in `reverse_each'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/processor_utils.rb:56:in `call_processors'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/loader.rb:134:in `load_from_unloaded'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/loader.rb:60:in `block in load'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/loader.rb:317:in `fetch_asset_from_dependency_cache'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/loader.rb:44:in `load'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/cached_environment.rb:20:in `block in initialize'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/cached_environment.rb:47:in `load'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/base.rb:66:in `find_asset'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/base.rb:73:in `find_all_linked_assets'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/manifest.rb:134:in `block in find'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/manifest.rb:133:in `each'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/manifest.rb:133:in `find'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/manifest.rb:186:in `compile'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-rails-3.4.2/lib/sprockets/rails/task.rb:67:in `block (3 levels) in define'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/rake/sprocketstask.rb:147:in `with_logger'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-rails-3.4.2/lib/sprockets/rails/task.rb:66:in `block (2 levels) in define'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/rake-13.0.6/exe/rake:27:in `<top (required)>'
/opt/elasticbeanstalk/.rbenv/versions/2.7.5/bin/bundle:25:in `load'
/opt/elasticbeanstalk/.rbenv/versions/2.7.5/bin/bundle:25:in `<main>'
Tasks: TOP => assets:precompile
(See full trace by running task with --trace)

puneetpandey · 2022-05-26T07:47:52Z

As per #173 I am trying to downgrade Uglifier to 4.1.0 to see if it works

rgaufman · 2022-05-26T08:06:12Z

When I downgrade to 4.1.0, I see this:

RAILS_ENV=production bundle exec rails assets:precompile
rails aborted!
Uglifier::Error: Unexpected token: punc (.)

Tasks: TOP => assets:precompile
(See full trace by running task with --trace)

When I add --trace, I also see:

/usr/local/lib/ruby/gems/3.1.0/gems/uglifier-4.1.0/lib/uglifier.rb:236:in `parse_result'
/usr/local/lib/ruby/gems/3.1.0/gems/uglifier-4.1.0/lib/uglifier.rb:218:in `run_uglifyjs'
/usr/local/lib/ruby/gems/3.1.0/gems/uglifier-4.1.0/lib/uglifier.rb:168:in `compile'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/compressing.rb:84:in `block in js_compressor='
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:84:in `call_processor'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:66:in `block in call_processors'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:65:in `reverse_each'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/processor_utils.rb:65:in `call_processors'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:182:in `load_from_unloaded'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:59:in `block in load'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:337:in `fetch_asset_from_dependency_cache'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/loader.rb:43:in `load'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/cached_environment.rb:44:in `load'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/base.rb:81:in `find_asset'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/base.rb:88:in `find_all_linked_assets'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/manifest.rb:125:in `each'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/manifest.rb:125:in `to_a'
/usr/local/lib/ruby/gems/3.1.0/gems/sprockets-4.0.3/lib/sprockets/manifest.rb:125:in `block (2 levels) in find'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/safe_task_executor.rb:24:in `block in execute'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb:47:in `block in synchronize'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb:47:in `synchronize'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb:47:in `synchronize'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/safe_task_executor.rb:22:in `execute'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/promise.rb:564:in `block in realize'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:352:in `run_task'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:343:in `block (3 levels) in create_worker'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:334:in `loop'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:334:in `block (2 levels) in create_worker'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:333:in `catch'
/usr/local/lib/ruby/gems/3.1.0/gems/concurrent-ruby-1.1.10/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:333:in `block in create_worker'
Tasks: TOP => assets:precompile

puneetpandey · 2022-05-26T08:15:10Z

Not worked for me either. I got this:

[INFO] Running command /bin/su webapp -c bundle exec /opt/elasticbeanstalk/config/private/checkforraketask.rb assets:precompile
[INFO] Found assets:precompile task in Rakefile
[INFO] Running command /bin/su webapp -c bundle exec rake assets:precompile
[INFO] /var/app/staging/app/models/user.rb:74: warning: key :unless is duplicated and overwritten on line 74
I, INFO -- : Writing /var/app/staging/public/assets/base-e93877bbc318b48cb1dc6dd89b3ed50cb854f5b0ed7cbb3c611ef086b54d0abd.js
I, INFO -- : Writing /var/app/staging/public/assets/base-e93877bbc318b48cb1dc6dd89b3ed50cb854f5b0ed7cbb3c611ef086b54d0abd.js.gz
rake aborted!
NoMethodError: undefined method `start_with?' for nil:NilClass
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/uglifier-4.1.20/lib/uglifier.rb:225:in `error_message'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/uglifier-4.1.20/lib/uglifier.rb:234:in `parse_result'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/uglifier-4.1.20/lib/uglifier.rb:216:in `run_uglifyjs'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/uglifier-4.1.20/lib/uglifier.rb:168:in `compile'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/compressing.rb:65:in `block in js_compressor='
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/legacy_proc_processor.rb:31:in `call'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/processor_utils.rb:75:in `call_processor'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/processor_utils.rb:57:in `block in call_processors'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/processor_utils.rb:56:in `reverse_each'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/processor_utils.rb:56:in `call_processors'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/loader.rb:134:in `load_from_unloaded'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/loader.rb:60:in `block in load'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/loader.rb:317:in `fetch_asset_from_dependency_cache'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/loader.rb:44:in `load'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/cached_environment.rb:20:in `block in initialize'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/cached_environment.rb:47:in `load'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/base.rb:66:in `find_asset'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/base.rb:73:in `find_all_linked_assets'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/manifest.rb:134:in `block in find'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/manifest.rb:133:in `each'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/manifest.rb:133:in `find'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/sprockets/manifest.rb:186:in `compile'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-rails-3.4.2/lib/sprockets/rails/task.rb:67:in `block (3 levels) in define'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-3.7.2/lib/rake/sprocketstask.rb:147:in `with_logger'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/sprockets-rails-3.4.2/lib/sprockets/rails/task.rb:66:in `block (2 levels) in define'
/var/app/staging/vendor/bundle/ruby/2.7.0/gems/rake-13.0.6/exe/rake:27:in `<top (required)>'
/opt/elasticbeanstalk/.rbenv/versions/2.7.5/bin/bundle:25:in `load'
/opt/elasticbeanstalk/.rbenv/versions/2.7.5/bin/bundle:25:in `<main>'
Tasks: TOP => assets:precompile
(See full trace by running task with --trace)

I am using this syntax:

config.assets.js_compressor = Uglifier.new(harmony: true)

No clue what to do next!

puneetpandey · 2022-05-26T08:21:43Z

@rgaufman are you using @import syntax in your stylesheets? I read this answer https://stackoverflow.com/a/70470984/649868 on StackOverflow to convert .scss to .css and use require instead of @import. Not sure how useful it is and if it fits into our case! Just a FYI

puneetpandey · 2022-05-26T09:19:07Z

Hi @rgaufman, replacing config.assets.js_compressor = Uglifier.new(harmony: true) with the block below:

config.assets.configure do |env|
  env.js_compressor  = :uglifier # or :closure, :yui
  env.css_compressor = :sass   # or :yui
end

worked for me. I have gem "sprockets-rails", :require => 'sprockets/railtie' in my Gemfile.

Need to confirm if this is a valid fix.

rgaufman · 2022-05-26T12:01:21Z

I need the harmony: true option as I have a lot of ES6 syntax :(

rgaufman · 2022-05-26T12:10:27Z

Oh wait, this did actually work, thank you! -- What a great workaround :D

puneetpandey · 2022-05-26T12:20:53Z

yeah this worked but did it compressed Javascripts with ES6 syntaxes properly? I am now validating this at my end as well

puneetpandey · 2022-05-26T12:31:43Z

As per Uglifier's Readme: UglifyJS only works with ES5. If you need to compress ES6, ruby-terser is a better option. It seems ES6 won't work well with Uglifier

rgaufman · 2022-05-26T12:51:11Z

It seems to work, but I have coffee script and I think the asset pipeline is doing some heavy lifting? - terser looks interesting! - Have you switched to this from uglier? - it's strange I don't see it in the ruby docs, Uglifier appears to be the only option that doesn't have Java as a dependency from what I can tell!

puneetpandey · 2022-05-26T14:23:14Z

I am in process of testing terser. It seems both Uglifier and Terser works on execJS so switching is very easy

rgaufman · 2022-05-26T16:55:47Z

I tried terser and it seems to have worked as a drop in replacement, I haven't seen any issues with the output yet. Thank you for the workarounds, that's super helpful!

puneetpandey · 2022-05-29T07:34:07Z

Worked for me too without any issues

RoRroland · 2023-01-08T15:16:56Z

Thanks @puneetpandey fix my issue too.

Uglifier(harmony: true) fails; :uglifier does not suit for ES6 See: lautis/uglifier#185

Failed to deploy on production with: Uglifier::Error: ../gems/uglifier-4.2.0/lib/uglifier.rb:291:in `parse_result' See lautis/uglifier/issues/185

Deploying fails on the `assets:precompile` step with: ``` Uglifier::Error: (Uglifier::Error) /uglifier.rb:291:in `parse_result' ``` Issue here: lautis/uglifier#185 There's a workaround suggested in the issue, but it's also suggested to move to the [Terser gem](https://github.com/ahorek/terser-ruby) as Uglifier's last update was more than 5 years ago, and Terser's is 3 weeks ago. This moves to the Terser gem.

msxavi · 2024-11-08T06:12:53Z

Same problem here in Rails 7.1.

[20] pry(#<Uglifier>)> Uglifier::VERSION
=> "4.2.1"
[21] pry(#<Uglifier>)> ExecJS::VERSION
=> "2.10.0"
[22] pry(#<Uglifier>)> context.call("uglifier", options)
=> {"error"=>{}}

My config uses harmony too:

config.assets.js_compressor = Uglifier.new(harmony: true, compress: { unused: false })

Interesting that @puneetpandey solution works with configure. However config.assets.js_compressor = :uglifier does not.

Uglifier::Error: Unexpected token: keyword (const). To use ES6 syntax, harmony mode must be enabled with Uglifier.new(:harmony => true).

Alternatively:

  config.assets.configure do |env|
    env.js_compressor = Uglifier.new(harmony: true, compress: { unused: false })
  end

rgaufman · 2024-11-08T18:08:06Z

Use terser instead

rgaufman changed the title ~~Uglifier::Error:~~ Uglifier::Error: - Solution: Switch to terser May 29, 2022

rgaufman mentioned this issue May 29, 2022

Uglifier::Error: #173

Open

shopkinspoint mentioned this issue Mar 9, 2023

Update UglifyJS to 3.17.4 #190

Open

nicolas-entourage added a commit to ReseauEntourage/entourage-ror that referenced this issue Apr 24, 2023

use terser rather than uglifier

99dc2fb

Uglifier(harmony: true) fails; :uglifier does not suit for ES6 See: lautis/uglifier#185

nicolas-entourage added a commit to ReseauEntourage/entourage-ror that referenced this issue Jul 3, 2023

use terser rather than uglifier

904e088

Uglifier(harmony: true) fails; :uglifier does not suit for ES6 See: lautis/uglifier#185

nicolas-entourage added a commit to ReseauEntourage/entourage-ror that referenced this issue Jul 7, 2023

use terser rather than uglifier

2b34869

Uglifier(harmony: true) fails; :uglifier does not suit for ES6 See: lautis/uglifier#185

nicolas-entourage added a commit to ReseauEntourage/entourage-ror that referenced this issue Jul 31, 2023

use terser rather than uglifier

59c48d4

Uglifier(harmony: true) fails; :uglifier does not suit for ES6 See: lautis/uglifier#185

nicolas-entourage added a commit to ReseauEntourage/entourage-ror that referenced this issue Aug 2, 2023

use terser rather than uglifier

5c8d3a6

Uglifier(harmony: true) fails; :uglifier does not suit for ES6 See: lautis/uglifier#185

JFen9 mentioned this issue Nov 15, 2023

upgrade rails from 6.1 to 7.1 PatrickF1/GraceTunes#162

Merged

manno added a commit to voc/voctoweb that referenced this issue Dec 25, 2023

Specify uglifier as symbol instead

ba0c433

Failed to deploy on production with: Uglifier::Error: ../gems/uglifier-4.2.0/lib/uglifier.rb:291:in `parse_result' See lautis/uglifier/issues/185

manno mentioned this issue Dec 25, 2023

Specify uglifier as symbol instead voc/voctoweb#728

Merged

tpendragon added a commit to pulibrary/dpul that referenced this issue Aug 16, 2024

Fix deploy as per lautis/uglifier#185

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tpendragon added a commit to pulibrary/dpul that referenced this issue Sep 11, 2024

Fix deploy as per lautis/uglifier#185

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Uglifier::Error: - Solution: Switch to terser #185

Uglifier::Error: - Solution: Switch to terser #185

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Uglifier::Error: - Solution: Switch to terser #185

Uglifier::Error: - Solution: Switch to terser #185

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