How to set base theme: seven properly

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Created on 26 July 2023, over 1 year ago

Updated 27 July 2023, over 1 year ago

Problem/Motivation

I'm using the adminimal_theme with my Drupal 9.5.10.
in adminimal_theme.info.yml I've found:
base theme: seven

Since the Seven core theme is deprecated, I've installed this one, disabled core Seven theme and enabled Seven contrib theme.

But how should I declare now the Seven theme as 'base theme' in another theme?

tried the same:
base theme: seven

but now the site throws an error:
Drupal\Core\Theme\MissingThemeDependencyException: Base theme seven has not been installed. in Drupal\Core\Theme\ThemeInitialization->getActiveThemeByName() (line 115 of core/lib/Drupal/Core/Theme/ThemeInitialization.php).

Steps to reproduce

enable the theme that uses Seven as a 'base theme'

Proposed resolution

Provide the way to use contrib Seven theme as the base them.

💬 Support request

Status

Needs review

Version

1.0

Component

Code

Created by

🇬🇪Georgia almador

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Comments & Activities

Issue created by @almador
Comment over 1 year ago →
🇮🇳India swatidhurandhar
Hi @almador, I followed the same steps as you mentioned above.
I installed drupal 9.5.10 and installed adminimal theme which uses 'seven' as base theme. As you mentioned, you disabled core theme seven, but I wasn't getting option to disable it. Instead I just installed contrib seven theme and core seven is replaced by contrib one. I have kept default and admin theme as 'Adminimal' but not getting any error. I have attached screenshots for reference.
I would suggest, start with a fresh setup and install contrib seven theme. Core seven will be replaced by it and you can keep it base theme of any another theme. It won't give any error.
Status changed to Needs review over 1 year ago9:20am 27 July 2023
Comment over 1 year ago →
🇮🇳India swatidhurandhar

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