Miért nem jó az msfvenom?

Metasploittal kísérletezgetek. Amikor el akartam indítani az msfvenomot, ezt kapom:

C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/wicked-0.5.0/app/controllers/wicked/wizard_controller.rb:5:in `<top (required)>': uninitialized constant ApplicationController (NameError)

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/engine.rb:465:in `block (2 levels) in eager_load!'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/engine.rb:464:in `each'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/engine.rb:464:in `block in eager_load!'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/engine.rb:462:in `each'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/engine.rb:462:in `eager_load!'

from C:in `eager_load!'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/application/finisher.rb:56:in `each'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/application/finisher.rb:56:in `block in <module:Finisher>'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/initializable.rb:30:in `instance_exec'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/initializable.rb:30:in `run'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/initializable.rb:55:in `block in run_initializers'

from C:/metasploit/ruby/lib/ruby/2.1.0/tsort.rb:226:in `block in tsort_each'

from C:/metasploit/ruby/lib/ruby/2.1.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'

from C:/metasploit/ruby/lib/ruby/2.1.0/tsort.rb:427:in `each_strongly_connected_component_from'

from C:/metasploit/ruby/lib/ruby/2.1.0/tsort.rb:347:in `block in each_strongly_connected_component'

from C:/metasploit/ruby/lib/ruby/2.1.0/tsort.rb:345:in `each'

from C:/metasploit/ruby/lib/ruby/2.1.0/tsort.rb:345:in `call'

from C:/metasploit/ruby/lib/ruby/2.1.0/tsort.rb:345:in `each_strongly_connected_component'

from C:/metasploit/ruby/lib/ruby/2.1.0/tsort.rb:224:in `tsort_each'

from C:/metasploit/ruby/lib/ruby/2.1.0/tsort.rb:205:in `tsort_each'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/initializable.rb:54:in `run_initializers'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/application.rb:215:in `initialize!'

from C:/metasploit/apps/pro/vendor/bundle/ruby/2.1.0/gems/railties-4.0.13/lib/rails/railtie/configurable.rb:30:in `method_missing'

from C:/metasploit/apps/pro/msf3/config/environment.rb:5:in `<top (required)>'

from C:/metasploit/apps/pro/msf3/lib/msfenv.rb:18:in `require'

from C:/metasploit/apps/pro/msf3/lib/msfenv.rb:18:in `<top (required)>'

from C:/metasploit/ruby/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'

from C:/metasploit/ruby/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'

from msfvenom:10:in `<main>'