ruby - iRuby kernel keeps getting killed -


i ruby homebrew on macos sierra 10.12.3. installed jupyter pip install , iruby gem install

when run iruby notebook server starts fine while creating new notebook kernel killed following log. 

/usr/local/lib/ruby/gems/2.4.0/gems/iruby-0.2.9/lib/iruby/kernel.rb:18:in `initialize': uninitialized constant iruby::kernel::session (nameerror)     /usr/local/lib/ruby/gems/2.4.0/gems/iruby-0.2.9/lib/iruby/command.rb:70:in `new'     /usr/local/lib/ruby/gems/2.4.0/gems/iruby-0.2.9/lib/iruby/command.rb:70:in `run_kernel'     /usr/local/lib/ruby/gems/2.4.0/gems/iruby-0.2.9/lib/iruby/command.rb:34:in `run'     /usr/local/lib/ruby/gems/2.4.0/gems/iruby-0.2.9/bin/iruby:5:in `<top (required)>'     /usr/local/bin/iruby:22:in `load'     /usr/local/bin/iruby:22:in `<main>'

i have seen other question there error message different.

the iruby documentation @ github suggests using anaconda , setting ruby environment 2.4.1 using rbenv. had same issue when experimenting iruby kernel.

from readme:
mac

i recommend installation using anaconda.

after that, run following commands.

brew install rbenv automake gmp libtool wget rbenv install 2.4.1 rbenv global 2.4.1
echo 'eval "$(rbenv init -)"' >> ~/.bashrc source ~/.bashrc brew install zeromq brew install czmq --head gem install cztop iruby iruby register --force


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