error.log

Error in ./boot.cr:12: instantiating 'Importation::Base#import()'

Importation::Base.new(App.new).import
                               ^~~~~~

in ./app/importation/base.cr:31: instantiating 'Importation::Runner#run()'

      Importation::Runner.new(self, path).run
                                          ^~~

in ./app/importation/runner.cr:15: instantiating 'Array(JSON::Type)#each_with_index()'

        @sheet.each_with_index do |hash, index|
               ^~~~~~~~~~~~~~~

in /usr/local/Cellar/crystal-lang/0.9.0/src/enumerable.cr:191: instantiating 'each()'

    each do |elem|
    ^~~~

in /usr/local/Cellar/crystal-lang/0.9.0/src/array.cr:774: instantiating 'each_index()'

    each_index do |i|
    ^~~~~~~~~~

in /usr/local/Cellar/crystal-lang/0.9.0/src/array.cr:774: instantiating 'each_index()'

    each_index do |i|
    ^~~~~~~~~~

in /usr/local/Cellar/crystal-lang/0.9.0/src/enumerable.cr:191: instantiating 'each()'

    each do |elem|
    ^~~~

in ./app/importation/runner.cr:15: instantiating 'Array(JSON::Type)#each_with_index()'

        @sheet.each_with_index do |hash, index|
               ^~~~~~~~~~~~~~~

in ./app/importation/runner.cr:17: instantiating 'Importation::Validator:Class#validate(Hash(String, JSON::Type), Int32, Hash(String, JSON::Type))'

          validator = Importation::Validator.validate(hash, index, @attributes)
                                             ^~~~~~~~

in ./app/importation/validator.cr:15: instantiating 'Importation::Validator#build()'

      validator.build
                ^~~~~

in ./app/importation/validator.cr:20: instantiating 'composite_fields()'

      composite_fields
      ^~~~~~~~~~~~~~~~

in ./app/importation/validator.cr:59: instantiating 'build_with_ddd()'

      build_with_ddd
      ^~~~~~~~~~~~~~

in ./app/importation/validator.cr:67: undefined method '[]' for Nil (compile-time type is (Nil | String | Int64 | Float64 | Bool | Hash(String, JSON::Type) | Array(JSON::Type)))

        @hash["phone_code"] = value[0, 1]
                                   ^

================================================================================

Nil trace:

  ./app/importation/validator.cr:66

            value = @hash[attr]
                         ^

  /usr/local/Cellar/crystal-lang/0.9.0/src/hash.cr:84

      def [](key)
          ^~

  /usr/local/Cellar/crystal-lang/0.9.0/src/hash.cr:85

        fetch(key)
        ^~~~~

  /usr/local/Cellar/crystal-lang/0.9.0/src/hash.cr:130

      def fetch(key)
          ^~~~~

  /usr/local/Cellar/crystal-lang/0.9.0/src/hash.cr:131

        fetch(key) do
        ^~~~~

  /usr/local/Cellar/crystal-lang/0.9.0/src/hash.cr:159

      def fetch(key)
          ^~~~~

  /usr/local/Cellar/crystal-lang/0.9.0/src/hash.cr:161

        entry ? entry.value : yield key
                      ^~~~~

  macro getter (in /usr/local/Cellar/crystal-lang/0.9.0/src/object.cr:208):4

          def value
              ^~~~~

  macro getter (in /usr/local/Cellar/crystal-lang/0.9.0/src/object.cr:208):5

            @value
            ^~~~~~

  macro setter (in /usr/local/Cellar/crystal-lang/0.9.0/src/object.cr:326):3

            def value=(@value)
                       ^

  macro setter (in /usr/local/Cellar/crystal-lang/0.9.0/src/object.cr:326):3

            def value=(@value)
                       ^~~~~

  macro setter (in /usr/local/Cellar/crystal-lang/0.9.0/src/object.cr:326):3

            def value=(@value)