ruby on rails - (undefined local variable or method `byebug' -

ruby on rails - (undefined local variable or method `byebug' -

i have follwing error:

nameerror (undefined local variable or method `byebug'

code is

def test t = "" byebug end

--

rails_env=development gem list | grep bye

byebug (3.5.1)

then run :

rails_env=development rails s

but shows:

nameerror (undefined local variable or method `byebug'

do have thought why?

thanks!

it seems need to

require 'byebug'

i in same situation , require failed 'cannot load such file' error adding gemfile worked.

ruby-on-rails byebug