beef does not start

[glaucobonomo]

i am using beef version 0.4.7.0, ruby version ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux-gnu], on kali linux 3 amd64
i downloaded fromgit, installed it and it say succesfullt installed,i run ./beef and this happens....

/opt/beef# ./beef
Traceback (most recent call last):
10: from ./beef:44:in <main>' 9: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in require'
8: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in require' 7: from /opt/beef/core/loader.rb:10:in <top (required)>'
6: from /usr/lib/ruby/vendor_ruby/bundler.rb:114:in require' 5: from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:65:in require'
4: from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:65:in each' 3: from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:76:in block in require'
2: from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:76:in each' 1: from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:80:in block (2 levels) in require'
/usr/lib/ruby/vendor_ruby/bundler/runtime.rb:84:in rescue in block (2 levels) in require': There was an error while trying to load the gem 'uglifier'. (Bundler::GemRequireError) Gem Load Error is: wrong argument type Class (expected Module) Backtrace for gem load error is: /usr/lib/ruby/vendor_ruby/v8/conversion.rb:23:in include'
/usr/lib/ruby/vendor_ruby/v8/conversion.rb:23:in block (2 levels) in <top (required)>' /usr/lib/ruby/vendor_ruby/v8/conversion.rb:22:in class_eval'
/usr/lib/ruby/vendor_ruby/v8/conversion.rb:22:in block in <top (required)>' /usr/lib/ruby/vendor_ruby/v8/conversion.rb:21:in each'
/usr/lib/ruby/vendor_ruby/v8/conversion.rb:21:in <top (required)>' /var/lib/gems/2.5.0/gems/therubyracer-0.12.2/lib/v8.rb:22:in require'
/var/lib/gems/2.5.0/gems/therubyracer-0.12.2/lib/v8.rb:22:in <top (required)>' /var/lib/gems/2.5.0/gems/execjs-2.7.0/lib/execjs/ruby_racer_runtime.rb:108:in require'
/var/lib/gems/2.5.0/gems/execjs-2.7.0/lib/execjs/ruby_racer_runtime.rb:108:in available?' /var/lib/gems/2.5.0/gems/execjs-2.7.0/lib/execjs/runtimes.rb:63:in each'
/var/lib/gems/2.5.0/gems/execjs-2.7.0/lib/execjs/runtimes.rb:63:in find' /var/lib/gems/2.5.0/gems/execjs-2.7.0/lib/execjs/runtimes.rb:63:in best_available'
/var/lib/gems/2.5.0/gems/execjs-2.7.0/lib/execjs/runtimes.rb:57:in autodetect' /var/lib/gems/2.5.0/gems/execjs-2.7.0/lib/execjs.rb:5:in module:ExecJS'
/var/lib/gems/2.5.0/gems/execjs-2.7.0/lib/execjs.rb:4:in <top (required)>' /var/lib/gems/2.5.0/gems/uglifier-4.1.9/lib/uglifier.rb:5:in require'
/var/lib/gems/2.5.0/gems/uglifier-4.1.9/lib/uglifier.rb:5:in <top (required)>' /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:81:in require'
/usr/lib/ruby/vendor_ruby/bundler/runtime.rb:81:in block (2 levels) in require' /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:76:in each'
/usr/lib/ruby/vendor_ruby/bundler/runtime.rb:76:in block in require' /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:65:in each'
/usr/lib/ruby/vendor_ruby/bundler/runtime.rb:65:in require' /usr/lib/ruby/vendor_ruby/bundler.rb:114:in require'
/opt/beef/core/loader.rb:10:in <top (required)>' /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in require'
/usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in require' ./beef:44:in

'
Bundler Error Backtrace:

i did not change any options or script before opening iit, i would have done it later on, but i tried as soon as i have installed it, to see if it was working

[bcoles]

BeEF has not been tested on Ruby 2.5.x.

Your issue is with the Gem uglifier.

Try this:

diff --git a/Gemfile b/Gemfile
index 40eff9a..e26eacc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -25,13 +25,7 @@ gem 'espeak-ruby', '>= 1.0.4' # Text-to-Voice
 gem 'nokogiri', '>= 1.7'
 gem 'rake'
 
-if RUBY_PLATFORM.downcase.include?('linux')
-  if File.readlines('/etc/os-release').grep(/^ID=(kali|parrot)/).any?
-    gem 'therubyracer', '0.12.2'
-  else
-    gem 'therubyracer', '0.12.3'
-  end
-end
+gem 'therubyracer', '0.12.2'
 
 # SQLite support
 group :sqlite do

Then bundle install.

[bcoles]

This issue should now be resolved. Closing.