Undefined method map for nil class how to#

Included Module method not found in class in Ruby.Schema.rb display Could not dump table 'progresses' because of following NoMethodError # undefined method `' for nil:NilClass.Deletion assignment, undefined method `avatar?' for nil:NilClass.

Convert array into nested hash for each element.

Ruby capitalize first character with spaces.

EventMachine with em-synchrony I need to correctly throttle my http requests.Make Ruby on Rails application available within network.Ruby on rails If image in database exist, else blank image will display.How do I find the payload of a Sendgrid email sent by ActionMailer?.How can I implement a chain method for my class?.Ruby rubocops error - assignment branch condition size too high.

Undefined method map for nil class how to#

Ruby and money, in a rails app, how to store money values in the db?.

Email validation flash message not working properly.

What version of Ruby to use in Why's (Poignant) Guide to Ruby.

Ruby/Postgres ActiveRecord without Rails: Undefined Table ERROR: relation '.' does not exist.

Rails / Active Support 'to_sentence' deprecated.

i have a rails undefined method `configure' for Rhoconnect:Module error when running rake exec db:restart.

undefined method `>' for nil:NilClass Ruby on Rails (NoMethodError).

What does this error mean? undefined method `klass' for nil:NilClass.

Undefined method 'id' for nil:NilClass, Ruby on Rails.

Got Error: NoMethodError: undefined method `fetch_value' for nil:NilClass when trying to create a new record in the rails console.

Ruby on Rails - using 'hi' gives an undefined variable or method error, what to change/set?.

`build': undefined method `new' for ExceptionNotifier:Module (NoMethodError) when executing rails s.

undefined method `action' for ArticlesController(Table doesn't exist):Class - Ruby on Rails error.

ruby on rails rake db:seed undefined method for.

Ruby on Rails undefined method `' for true:TrueClass Capybara & poltergeist.

Is there a ruby or rails method that will return the hash key when checking for the hash key?.

Rails 3 - undefined method `model_name' for NilClass:Class when i try to render 'new' method.

undefined method `' for nil:NilClass When Looping Through Ruby Array.

undefined method `model_name' for NilClass:Class (Using formtastic in Rails 3.0.3, Ruby 1.9.2).

Undefined method `gsub' for nil:NilClass driving me insane in ruby on rails.

Undefined method `has_attached_file' with paperclip 2.3.8 gem for Rails 2 using Ruby 1.8.7.

Can't figure out this rails error: undefined method `remember_token=' for #?.

'NoMethodError: undefined method `scan' for nil:NilClass' when functional testing with rails.

Rails / Devise: undefined method `router_name' for nil:NilClass - what is coming through as nil?.

Getting undefined method `errors' for nil:NilClass Ruby on Rails Guide.

undefined method `eq' for nil:NilClass with rails 3 and ruby enterprise on ubuntu hardy.

undefined method `its' for RSpec (Hartl's Ruby on Rails Tutorial).

AASM is not working with my rails 3 and ruby 1.8.7 ( undefined method `name' for nil:NilClass ).

Undefined local variable or method `parsedData' when Using JSON to Parse data from Googlesheets To FusionCharts in Ruby on Rails app.

undefined method `reset' for RDoc::TopLevel:Class when installing a new Ruby gem.

Bug when switching to Rails 4.1 - `method_missing': undefined method `whitelist_attributes=' for ActiveRecord::Base:Class (NoMethodError).

What is causing this undefined method error in my Ruby on Rails / GraphQL project.

Ruby on Rails Why do I get the error: undefined method `email' for 69:Fixnum when trying to send an email?.

Ruby rails undefined method `empty?' for nil:NilClass when making a dropdown menu for objects in a class.

Ruby on rails : undefined method `map' for nil:NilClass, what causes this? when i add record to table.

Lib/active_model/serializer/collection_serializer. Lib/active_model/serializer/belongs_to_reflection.rb, Lib/active_model/serializer/has_many_reflection.rb, Lib/active_model/serializer/has_one_reflection.rb, Lib/active_model/serializer/adapter/attributes.rb, Lib/active_model/serializer/errors_serializer.rb, Lib/active_model/serializer/lazy_association.rb, Lib/active_model/serializer/error_serializer.rb, Lib/active_model/serializer/concerns/caching.rb,

Lib/active_model/serializer/array_serializer.rb, Lib/active_model/serializer/adapter/json_api.rb, Lib/active_model/serializer/adapter/null.rb, Lib/active_model/serializer/adapter/json.rb, Lib/active_model/serializer/association.rb, Lib/active_model/serializer/reflection.rb,

Show all Extended by: ActiveModelSerializers::Deprecate, ActiveSupport::Autoload Includes: Caching, ActiveSupport::Configurable Defined in: lib/active_model/serializer.rb ,