Error with "schleuder-conf lists list-options"
$ schleuder-conf lists list-options
/usr/local/rvm/gems/ruby-2.1.8/gems/schleuder-conf-0.0.1.beta5/lib/schleuder-conf/lists.rb:51:in `list_options': undefined method `join' for nil:NilClass (NoMethodError)
from /usr/local/rvm/gems/ruby-2.1.8/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /usr/local/rvm/gems/ruby-2.1.8/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /usr/local/rvm/gems/ruby-2.1.8/gems/thor-0.19.1/lib/thor.rb:359:in `dispatch'
from /usr/local/rvm/gems/ruby-2.1.8/gems/thor-0.19.1/lib/thor/invocation.rb:115:in `invoke'
from /usr/local/rvm/gems/ruby-2.1.8/gems/thor-0.19.1/lib/thor.rb:235:in `block in subcommand'
from /usr/local/rvm/gems/ruby-2.1.8/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /usr/local/rvm/gems/ruby-2.1.8/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /usr/local/rvm/gems/ruby-2.1.8/gems/thor-0.19.1/lib/thor.rb:359:in `dispatch'
from /usr/local/rvm/gems/ruby-2.1.8/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
from /usr/local/rvm/gems/ruby-2.1.8/gems/schleuder-conf-0.0.1.beta5/bin/schleuder-conf:7:in `<top (required)>'
from /usr/local/rvm/gems/ruby-2.1.8/bin/schleuder-conf:22:in `load'
from /usr/local/rvm/gems/ruby-2.1.8/bin/schleuder-conf:22:in `<main>'
from /usr/local/rvm/gems/ruby-2.1.8/bin/ruby_executable_hooks:15:in `eval'
from /usr/local/rvm/gems/ruby-2.1.8/bin/ruby_executable_hooks:15:in `<main>'
Platform:
OS: CentOS Linux release 7.2.1511 (Core)
ruby 2.1.8p440 (2015-12-16 revision 53160) [x86_64-linux]
LOCAL GEMS
activemodel (4.2.7.1) activerecord (4.2.7.1) activesupport (4.2.7.1) arel (7.1.4, 6.0.3) backports (3.6.8) bigdecimal (1.2.7, default: 1.2.4) builder (3.2.2) bundler (1.13.6, 1.13.0) bundler-unload (1.0.2) concurrent-ruby (1.0.2) executable-hooks (1.3.2) gem-wrappers (1.2.7) gpgme (2.0.12) i18n (0.7.0) io-console (0.4.6, default: 0.4.3) json (2.0.2, default: 1.8.1) mail (2.6.4) mail-gpg (0.2.8, 0.2.6) mime-types (3.1) mime-types-data (3.2016.0521) mini_portile2 (2.1.0) minitest (5.9.1, 5.9.0, default: 4.7.5) multi_json (1.12.1) power_assert (0.3.1) psych (2.1.1, default: 2.0.5) rack (1.6.4) rack-protection (1.5.3) rack-test (0.6.3) rake (11.3.0, default: 10.1.0) rdoc (5.0.0, default: 4.1.0) rubygems-bundler (1.4.4) rubygems-update (2.6.8, 2.6.6) rvm (1.11.3.9) schleuder (3.0.0.beta5) schleuder-conf (0.0.1.beta5) sinatra (1.4.7) sinatra-contrib (1.4.7) sqlite3 (1.3.12, 1.3.11) test-unit (3.2.2, default: 2.1.8.0) thor (0.19.1) thread_safe (0.3.5) tilt (2.0.5) tzinfo (1.2.2)