Я сталкиваюсь с ошибкой при выполнении любой миграции как:
[email protected]:~/Desktop/Projects/invoicemanagement$ rails g migration RemoveDescriptionOfGoodsFromInvoiceDetails description_of_goods:string
Warning: You're using Rubygems 1.8.23 with Spring. Upgrade to at least Rubygems 2.1.0 and run `gem pristine --all` for better startup performance.
/var/lib/gems/1.9.1/gems/bundler-1.9.0/lib/bundler/runtime.rb:34:in `block in setup': You have already activated spring 1.3.3, but your Gemfile requires spring 1.3.2. Prepending `bundle exec` to your command may solve this. (Gem::LoadError)
from /var/lib/gems/1.9.1/gems/bundler-1.9.0/lib/bundler/runtime.rb:19:in `setup'
** 11 stack trace lines skipped **
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
Итак, с некоторыми поисковыми системами я запускаю обновление пакета spring, которое разрешило указанную выше ошибку, и я могу удалить/добавить миграции. Опять же, если я запустил rake db: migrate, я получаю ошибку как:
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:
undefined method `to_sym' for nil:NilClass/var/lib/gems/1.9.1/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract/schema_definitions.rb:216:in `column'
** 33 stack trace lines skipped **
/var/lib/gems/1.9.1/gems/activerecord-4.1.4/lib/active_record/railties/databases.rake:34:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:migrate
Пожалуйста, помогите мне.