I am new with Ruby and Cucumber and I got this error undefined method `col_span' for class `Watir::TableCell' (NameError) what should I do? - Software Quality Assurance & Testing Stack Exchange
Undefined method "cell_index" in doing Cell Array — KLayout
NoMethodError: undefined method for nil:NilClass... Explained - DEV Community
C:/URBANopt-cli-0.9.0/gems/ruby /2.7.0/gems/urbanopt-geojson-0.9.0/lib/urbanopt/geojson/feature.rb:277:in `block in find_feature_center': undefined method `/' for #<Array:0x000000000aec6af8> (NoMethodError) - scripting - Ladybug Tools | Forum
ruby on rails - undefined method `user_name' for nil:NilClass - Stack Overflow