Rails: Webpacker 4.2 can’t find application in /app/public/packs/manifest.json heroku

by

It looks like there’s no application.css in your manifest.json which means you might not be importing any css from within your Webpack javascript files.

If that’s all true, then you can fix the error in production by one of the following:

  • Quick (temporary) fix: Add extract_css: false to your production block in config/webpacker.yml (which would mimic your local environments)
  • If you don’t want to compile css with Webpacker: Remove <%= stylesheet_pack_tag 'application' %> from your application layout
  • If you want to compile some css with Webpacker: Import at least one css file from your Webpack javascript

More Related Contents:

  1. Rails 5/6: How to include JS functions with webpacker?
  2. How to add jquery third party plugin in rails 6 webpacker
  3. styled components final styles are injected directly in DOM with tag, with style tag injection does performance gets affected?
  4. Managing jQuery plugin dependency in webpack
  5. Define global variable with webpack
  6. Find DOM element by ID when ID contains square brackets?
  7. What does the @ mean inside an import path?
  8. Best way to add page specific JavaScript in a Rails 3 app?
  9. Expose jQuery to real Window object with Webpack
  10. How to load all files in a directory using webpack without require statements
  11. Why escape_javascript before rendering a partial?
  12. webpack dynamic module loader by require
  13. JavaScript file per view in Rails
  14. ES6 modules implementation, how to load a json file
  15. Load new modules dynamically in run-time with Angular CLI & Angular 5
  16. Angular 2 – communication of typescript functions with external js libraries
  17. How to pass Ruby variables to a JavaScript function in a Rails view?
  18. How to store Configuration file and read it using React
  19. How to pass a javascript variable into a erb code in a js view?
  20. Rails flash notice via ajax
  21. Rails, javascript not loading after clicking through link_to helper
  22. “Can’t find variable” error with Rails 3.1 and Coffeescript
  23. javascript import from ‘/folder’ with index.js
  24. Webpack bundles my files in the wrong order (CommonsChunkPlugin)
  25. Webpack and external libraries
  26. Is it possible to use dotenv in a react project?
  27. “You may need an additional loader to handle the result of these loaders.”
  28. Electron IPC and nodeIntegration
  29. Conflict: Multiple assets emit to the same filename
  30. Solution: load independently compiled Webpack 2 bundles dynamically [closed]

Leave a Comment