I can not uninstall Classy theme

Created on 2 October 2014, about 10 years ago

Updated 9 November 2023, about 1 year ago

I enabled Classy theme and set default, after that I enabled Bartik to default and tried to uninstall Classy, but i see an error page, and I find a bug in php.log

[02-Oct-2014 12:42:35 Europe/Berlin] Uncaught PHP Exception InvalidArgumentException: "The base theme classy cannot be uninstalled, because theme bartik depends on it." at /Users/csakiistvan/drupal8/drupal/core/lib/Drupal/Core/Extension/ThemeHandler.php line 327

PHP version: 5.4.26

PS: the Classy them is missing from Component

🐛 Bug report

Status

Fixed

Version

8.0 ⚰️

Component

Theme →

Last updated about 1 hour ago

Maintained by
🇺🇸United States @effulgentsia
🇩🇪Germany @Fabianx
🇨🇦Canada @joelpittet
🇫🇮Finland @lauriii

Created by

🇭🇺Hungary csakiistvan

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Amsterdam2014

Incomplete comments

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It's likely this issue predates Contrib.social: some issue and comment data are missing.

Comment about 1 year ago →
🇺🇸United States goose2000
I know this is closed but I had this issue, I could not install with drush and there was no UI to uninstall these. So I just copied the URL hovering over the uninstall bartik button:

https://invoice-bhs.blah.blah/admin/appearance/uninstall?theme=bartik&to...

and changed it to classy

https://invoice-bhs.blah.blah/admin/appearance/uninstall?theme=classy&to...

And it uninstalled fine.

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