[RUBY] Uncaught Error: Cannot find module Comment out if you get'bootstrap-form'

Memorandum for yourself

environment

• macOS Catalina
• ruby 2.6.6
• Rails 6.0.3.2
• gem 'bootstrap_form'
• Google chrome

Delete the administrator from the administrator list screen Then the following error appears on the browser.

Unknown action The action 'show' could not be found for Administrator::AdminsController

Comes out. Why show ??

I checked controller, view, and path, but there was no problem.

If you check the error log on the web developer console,

Uncaught Error: Cannot find module 'bootstrap-form'
    at webpackMissingModule (application.js:1)
    at Module../app/javascript/packs/application.js (application.js:1)
    at __webpack_require__ (bootstrap:19)
    at bootstrap:83
    at bootstrap:83

Confirm that an error has occurred in the bootstrap-form module.

in app / javascript / packs / application.js import 'bootstrap-form'; Comment out.

After checking the operation, it was successfully deleted.