HACS Unexpected Frontend Version

Updated HACS the other day because it said there was one available. Since then I’ve had this warning at the top of the page. I can’t seem to click on it to find out any more information. Is there a way to roll it back? Or does anyone know what might have gone wrong?


Same problem here.

The strange thing is, when I’m looking on my desktop PC I get the error, but when I’m on my laptop looking at it there’s no error.

More info from logs:

Log Details (ERROR)
Logger: frontend.js.latest.202006033
Source: components/system_log/__init__.py:209
First occurred: 4:12:51 PM (1 occurrences)
Last logged: 4:12:51 PM

http://homeassistant.local:8123/hacsfiles/frontend-202006201137.js:1:17185 Uncaught NotSupportedError: Failed to execute 'define' on 'CustomElementRegistry': the name "hacs-single-page-layout" has already been used with this registry

Any suggestions?

I had that today.
Just cleared cache and the issue has gone away :slight_smile:


Yep that looks to have fixed it. Cache cleared and problem gone.

how do you clear the cache?

1 Like

clearing the web browser cache fixed this for me too

Depending on which browser you’re using, you can use Ctrl + F5, or in settings -> browser history there should be the option to clear cache

Thanks sorry I thought maybe home assistant might have had its own cache or something. Clearing browser cache did the trick for me.