graphiql-rails: uninitialized constant GraphiQL::Rails::EditorsController

Hi, I’m getting this error when try to access to http://localhost:3000/graphiql

uninitialized constant GraphiQL::Rails::EditorsController

I’ve already installed graphql and graphiql gems

gem rails '5.1.6'

gem 'graphql', '1.7.4'
gem 'graphiql-rails', '1.4.10', group: :development

NOTE: I already try with ‘graphiql-rails’, ‘1.4.4’ and it didn’t work

The weird thing is that the classes Config Engine VERSION have been loaded by not the EditorsController.

Seems that the problem is how the gem is requiring the rails embedded app.

I really appreciate your support to fix this issue. Thanks

About this issue

Original URL
State: closed
Created 6 years ago
Comments: 20 (5 by maintainers)

Most upvoted comments

I ran into this issue after upgrading to Rails 6. I was able to resolve it by adding 'graphiql' => 'GraphiQL' to the list of inflections for Zeitwerk.

Rails.autoloaders.each do |autoloader|
  autoloader.inflector = Zeitwerk::Inflector.new
  autoloader.inflector.inflect(
    'graphiql' => 'GraphiQL'
  )
end

remz99 on Apr 17, 2020

It looks right to me 😢 The backtrace, does, I mean. But why doesn’t that call to const_get use ActiveSupport::Dependencies :S

rmosolgo on Apr 12, 2018

I also bumped into this error, but only in staging environment. The reason was that I added the gem to Gemfile’s development group.

kammerer on Sep 11, 2018