Check failed to run: can't modify frozen String

[TC-robV]

for 2 of the checks i get an error. all the other checks run fine.

this one i can't even get a help screen to show anything throws this.

#check-kube-service-available.rb
Check failed to run: can't modify frozen String, ["/usr/local/bundle/gems/mixlib-cli-1.7.0/lib/mixlib/cli.rb:315:in build_option_arguments'", "/usr/local/bundle/gems/mixlib-cli-1.7.0/lib/mixlib/cli.rb:269:in block (2 levels) in opt_parser'", "/usr/local/bundle/gems/mixlib-cli-1.7.0/lib/mixlib/cli.rb:268:in each'", "/usr/local/bundle/gems/mixlib-cli-1.7.0/lib/mixlib/cli.rb:268:in block in opt_parser'", "/usr/local/lib/ruby/2.5.0/optparse.rb:1062:in initialize'", "/usr/local/bundle/gems/mixlib-cli-1.7.0/lib/mixlib/cli.rb:263:in new'", "/usr/local/bundle/gems/mixlib-cli-1.7.0/lib/mixlib/cli.rb:263:in opt_parser'", "/usr/local/bundle/gems/mixlib-cli-1.7.0/lib/mixlib/cli.rb:230:in parse_options'", "/usr/local/bundle/gems/sensu-plugin-4.0.0/lib/sensu-plugin/cli.rb:16:in initialize'", "/usr/local/bundle/gems/sensu-plugins-kubernetes-5.0.1/lib/sensu-plugins-kubernetes/cli.rb:82:in initialize'", "/usr/local/bundle/gems/sensu-plugin-4.0.0/lib/sensu-plugin/cli.rb:58:in new'", "/usr/local/bundle/gems/sensu-plugin-4.0.0/lib/sensu-plugin/cli.rb:58:in block in class:CLI'"]

for this one i can get the help but once i pass in the url and token i get this.

#check-kube-nodes-ready.rb -s https://kubernetes.default.svc/api --token-file /var/run/secrets/kubernetes.io/serviceaccount/token
Check failed to run: can't modify frozen String, ["/usr/local/bundle/gems/sensu-plugins-kubernetes-5.0.1/bin/check-kube-nodes-ready.rb:78:in rescue in run'", "/usr/local/bundle/gems/sensu-plugins-kubernetes-5.0.1/bin/check-kube-nodes-ready.rb:60:in run'", "/usr/local/bundle/gems/sensu-plugin-4.0.0/lib/sensu-plugin/cli.rb:59:in `block in class:CLI'"]

ruby -v
ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux]

[rgarcia89]

@TC-robV have you found a solution for this?