Installing Diagram application and its dependencies

Hello

I’m still trying to master xwiki eco system

I’ve installed this extension Diagram Application
https://extensions.xwiki.org/xwiki/bin/view/Extension/Diagram%20Application

when I try to run it, I just have this uploading icon (spinning wheel) and nothing shows up

In Chrome Javascipt console, I have this message

image

Any idea ?
Please Help

Thank you very much

Just out of curiousity, are you dealing with browser cache issues?

Open the site in a private browser session and see if the error remains.