My code is passing all the tests, but when I run an attempt I get the following exit error. What does this mean? The rb: line references are always the same - there is no line 10 in my code.
main.rb:10:in`list': undefined method `[]' for nil:NilClass (NoMethodError) from main.rb:21:in `block in <main>'from/runner/frameworks/ruby/cw-2.rb:55:in`block in describe' from /runner/frameworks/ruby/cw-2.rb:46:in `measure' from /runner/frameworks/ruby/cw-2.rb:51:in `describe'frommain.rb:13:in`<main>'
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My code is passing all the tests, but when I run an attempt I get the following exit error. What does this mean? The rb: line references are always the same - there is no line 10 in my code.