Hotwire Rails - Cannot use import statement outside a module

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I have installed hotwire-rails in an existing Rails project. Before even writing any hotwire related code I get the following error on the browser console on every page:

Uncaught SyntaxError: Cannot use import statement outside a module in application.debug-86...95.js:53462

The line that the error is referring to is this:

import { Controller } from "@hotwired/stimulus"

I am using Rails 6.1.3.1 with Sprockets for the assets, I have only used hotwire in Rails projects using webpack before so unsure if this has something to do with it.

turbo-rails hotwire-rails stimulusjs ruby-on-rails
1 Answers

In Rails 7, turbo comes prepackaged with a few gems that you need to install manually if you're using Rails 6.

1/ Install gem importmap-rails

2/ Install gem stimulus-rails

This should solve your issue.

user_53729510
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