Server error retrieving the css on a new project on v4.2.2

[Fernando Alvarez Junco]

Expected behavior and actual behavior

The css file is properly generated. On version 4.2.1 still works properly

Steps to reproduce the problem (from a clean middleman installation)

gem install middleman
middleman init demo
cd demo
bundle exec middleman --verbose
open http://127.0.0.1:4567/stylesheets/site.css

The following error is displayed in the server: TypeError: Cannot read properties of undefined (reading 'version') (stacktrace bellow)
The HTTP response code for the request is 500

Additional information

• Ruby version: v2.7.1
• Middleman version: 4.4.2
• OS version: Mac OS Monterey 12.5.1

Stacktrace

ERROR ExecJS::ProgramError: TypeError: Cannot read properties of undefined (reading 'version')
        eval (eval at <anonymous> ((execjs):1:213), <anonymous>:1:10)
        (execjs):1:213
        (execjs):19:14
        (execjs):1:40
        Object.<anonymous> ((execjs):1:58)
        Module._compile (node:internal/modules/cjs/loader:1101:14)
        Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
        Module.load (node:internal/modules/cjs/loader:981:32)
        Function.Module._load (node:internal/modules/cjs/loader:822:12)
        Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:79:12)
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/execjs-2.8.1/lib/execjs/external_runtime.rb:39:in `exec'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/execjs-2.8.1/lib/execjs/external_runtime.rb:21:in `eval'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/execjs-2.8.1/lib/execjs/runtime.rb:64:in `eval'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/autoprefixer-rails-9.8.6.5/lib/autoprefixer-rails/processor.rb:170:in `runtime'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/autoprefixer-rails-9.8.6.5/lib/autoprefixer-rails/processor.rb:53:in `process'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/middleman-autoprefixer-2.10.1/lib/middleman-autoprefixer/extension.rb:83:in `prefix'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/middleman-autoprefixer-2.10.1/lib/middleman-autoprefixer/extension.rb:74:in `process'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/middleman-autoprefixer-2.10.1/lib/middleman-autoprefixer/extension.rb:60:in `call'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/rack-2.2.4/lib/rack/head.rb:12:in `call'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/rack-2.2.4/lib/rack/lint.rb:50:in `_call'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/rack-2.2.4/lib/rack/lint.rb:38:in `call'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/rack-2.2.4/lib/rack/builder.rb:244:in `call'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/rack-2.2.4/lib/rack/handler/webrick.rb:95:in `service'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/webrick-1.7.0/lib/webrick/httpserver.rb:140:in `service'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/webrick-1.7.0/lib/webrick/httpserver.rb:96:in `run'
        /Users/user/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/webrick-1.7.0/lib/webrick/server.rb:310:in `block in start_thread'

[Henrique F. Teixeira]

It is a execjs 2.8.0 issue: rails/execjs#99

locking the execjs gem to version 2.7.0 in Gemfile solves the problem for me:

gem 'execjs', '2.7.0'

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.