Set $EDITOR environment variable to your desired editor, add 'error-locator' gem to your gem file and add ' post '/error-locator' => ErrorLocator' to your routes.rb. Click on a stack trace line in the browser.

error_message_on for japanese mobile-phone

Overrides the default error_messages_for helper and extends it to make it useful. It adds the ability to display messages for an error of AR objects, it can use a partial to render the errors, plus other enhancements.

Error pages are dynamically served by the included ErrorsController

Description of ErrorReady.

Generator of standard HTTP responses and error serializer for models.

ErrorsFullDetails extends ActiveModel::Errors to allow adding error codes to error messages

Errship3 is a Rails 3.2 engine for rendering error pages inside your layout. It supports i18n, custom exceptions, and Airbrake (Hoptoad) error tracking.

Transforms .js files into js files so you can write es6 code and use it in your views.

Description of Esbuilder.

A full-featured support ticket system with SLA, escalation rules, and three hosting modes.

Write Ruby apps around the beta.gouv.fr dataset without the hassle

Espago api wrapper

Description of EspAuth.

EspCkeditor.

Description of EspCommons.

Description of EspPermissions.

For Building Elastic Search Queries

Performant count estimates for Rails and PostgreSQL.

virtual account generator, and payment callback parser