@ckeditor/ckeditor5-vue2 in Vue 3.x application throws unexpected error

[pomek]

We agreed that it should throw an error but with a different message.

What I've got:

Uncaught TypeError: Cannot read property 'version' of undefined
    at Module.eval (ckeditor.js?6930:5)
    at n (ckeditor.js?6930:5)
    at eval (ckeditor.js?6930:5)
    at eval (ckeditor.js?6930:5)
    at eval (ckeditor.js?6930:5)
    at eval (ckeditor.js?6930:5)
    at Object../node_modules/@ckeditor/ckeditor5-vue2/dist/ckeditor.js (chunk-vendors.js:21)
    at __webpack_require__ (app.js:849)
    at fn (app.js:151)
    at eval (main.js:12)

What I expected:

ckeditor5-vue2/src/plugin.js

Lines 13 to 17 in 05b4b47

	throw new Error(
	'The CKEditor plugin works only with Vue 2.x. ' +
	'For more information, please refer to ' +
	'https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/vuejs-v2.html'
	);