CKEditorError: ckeditor-duplicated-modules

[AndrewSmir]

Hi!

I'm trying customizing the build using built from source but faced the error ckeditor-duplicated-modules. I've followed the docs but it didn't help. Then I tried to use config from the example repo that mentioned in the documentation: https://github.com/ckeditor/ckeditor5-react-example assuming, that it should work. But there is the same issue)

Steps to reproduce:

• git clone https://github.com/ckeditor/ckeditor5-react-example
• npm i
• npm run start

I've checked the installed versions of ckeditor packages - all the same (38.1.1) except @ckeditor/ckeditor5-dev-utils (38.3.1)

What might be the reason?

[AndrewSmir]

ckeditor/ckeditor5#14780