/Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/ostruct.rb:176:in `respond_to_missing?': undefined method `key?' for nil:NilClass (NoMethodError) from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/to_ruby.rb:381:in `respond_to?' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/to_ruby.rb:381:in `init_with' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/to_ruby.rb:374:in `revive' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/to_ruby.rb:208:in `visit_Psych_Nodes_Mapping' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/visitor.rb:16:in `visit' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/visitor.rb:6:in `accept' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/to_ruby.rb:32:in `accept' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/to_ruby.rb:311:in `visit_Psych_Nodes_Document' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/visitor.rb:16:in `visit' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/visitor.rb:6:in `accept' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/visitors/to_ruby.rb:32:in `accept' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych/nodes/node.rb:38:in `to_ruby' from /Users/kkuchenbecker/.rbenv/versions/2.3.0/lib/ruby/2.3.0/psych.rb:253:in `load' from psych_error.rb:4:in `
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