twbs / twbs/bootstrap-rubygem

Rails 5.2.1 triggers `ActionView::Template::Error (undefined not callable)`

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#166 2 comments 0 reactions 0 assignees View on GitHub

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Description

Problem

Having Rails 5.2.1, server successfully starts up but on the first page load, an error appears from my application.html.erb:

ActionView::Template::Error (undefined not callable):
     5:     <%= csrf_meta_tags %>
     6:     <%= csp_meta_tag %>
     7:
     8:     <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
     9:     <%= javascipt_include_tag 'application', 'data-turbolinks-track': 'reload' %>
    10:

(execjs):1
app/views/layouts/application.html.erb:8:in `_app_views_layouts_application_html_erb__765064803_56530640'
Configuration

From bundle list:

  • Rails 5.2.1
  • autoprefixer-rails 9.3.1
  • bootstrap 4.1.3
  • jquery-rails 4.3.3
  • sprockets 3.7.2
  • sprockets-rails 3.2.1

My application.scss has @import "bootstrap":

@import 'my-application-stuff/*';
@import 'bootstrap';
body {
  ...
}

My application.js is

//= require rails-ujs
//= require jquery
//= require activestorage
//= require turbolinks
//= require jquery3
//= require popper
//= require bootstrap-sprockets
//= require_tree .
Hints

After trying by commenting out excerpts of code and restarting, I came to the conclusion that the culprit is require 'autoprefixer-rails from engine.rb. However, I could not figure out why but when commenting this line, I can successfully load my pages with bootstrap.

Comments

My issue seems to be different from https://github.com/twbs/bootstrap-rubygem/issues/164, hence a different issue

After seeing https://github.com/twbs/bootstrap-rubygem/issues/162, just in case, I have Node v11.1.0 with NPM 6.4.1

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the Rails 5.2.1 failure from app/views/layouts/application.html.erb with the reported asset configuration. Start with the require 'autoprefixer-rails' line in lib/bootstrap/engine.rb, then inspect application.scss and application.js to isolate the interaction. Done means the first page loads without ActionView::Template::Error while Bootstrap assets still work.

Written by the indexing model from the issue text.

Assessment

Tech stack
bootstrap, javascript, rails
Domain
build-system, frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
32/100

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