paperclip Ruby on Rails 4 install Error? [duplicate]

StackOverflow https://stackoverflow.com/questions/23641168

  •  22-07-2023
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Question

after adding gem and bundle install, I tried to generate paperclip but I get error?

In GemFile 

      gem "paperclip", "~> 4.1"

In command line:

 $   rails generate paperclip user avatar

Error I get:

   /Users/amirna/.rvm/gems/ruby-2.1.1/gems/railties-4.1.0/lib/rails/generators/actions/create_migration.rb:13:in `migration_file_name': protected method `migration_file_name' called for #<PaperclipGenerator:0x007fc6c7e43690> (NoMethodError)
from /Users/amirna/.rvm/gems/ruby-2.1.1/gems/railties-4.1.0/lib/rails/generators/actions/create_migration.rb:34:in `existing_migration'
from /Users/amirna/.rvm/gems/ruby-2.1.1/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:112:in `invoke_with_conflict_check'
from /Users/amirna/.rvm/gems/ruby-2.1.1/gems/thor-0.19.1/lib/thor/actions/create_file.rb:60:in `invoke!'
Was it helpful?

Solution

It is a documented issue at PaperClip - https://github.com/thoughtbot/paperclip/issues/1495

Change that to :

gem 'paperclip', github: 'thoughtbot/paperclip'

OTHER TIPS

You should try the migration manually if the generator doesn't work. Or if the above answer doesn't fix it.

class AddAvatarColumnsToUsers < ActiveRecord::Migration
  def self.up
    add_attachment :users, :avatar
  end

  def self.down
    remove_attachment :users, :avatar
  end
end
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