Call to a member function getType()/getPluginID() on null

I saw this error 1 week ago and made this commit https://git.drupalcode.org/project/group2to3/-/commit/20b26a04093d1cef94...

Do you have the latest version of this module?

I guess not. Composer reported it pulled down dev-3.x d0dd2af

Started over with

1. composer require"drupal/group2to3:3.0.x" Composer reports Installing drupal/group2to3 (dev-3.0.x bc7f887), which includes the change in the commit you recommended
2. drush en group2to3
3. composer require drupal/group:^3.0
4. drush deploy

After completing Step 4 of 8 (Updates the target type of Entity Reference fields): Process finished., I get a new, but similar error: Call to a member function getPluginId() on null , and the backtrace still indicating Views as a source:

• Error: Call to a member function getPluginId() on null in Drupal\group\Entity\Storage\GroupRelationshipStorage->getEntityClass() (line 93 of .../group/src/Entity/Storage/GroupRelationshipStorage.php)
• #0 .../core/lib/Drupal/Core/Entity/EntityFieldManager.php(384): Drupal\group\Entity\Storage\GroupRelationshipStorage>getEntityClass('group_content_t...')
• #1 .../core/lib/Drupal/Core/Entity/EntityFieldManager.php(353): Drupal\Core\Entity\EntityFieldManager->buildBundleFieldDefinitions('group_content', 'group_content_t...', Array)
• #2 .../core/modules/views/views.views.inc(263): Drupal\Core\Entity\EntityFieldManager->getFi
  eldDefinitions('group_content', 'group_content_t...')

The patch at https://www.drupal.org/project/group/issues/3399452 🐛 Error: Call to a member function getPluginId() on null in modules/contrib/group/src/Entity/Storage/GroupRelationshipStorage.php on line 93 Active worked for me.
https://www.drupal.org/files/issues/2023-11-06/group3-3399452-4.patch →

> >  [notice] Step 2 of 8 (Copy data): Copied data. Processed to save the new configurations.
> >  [notice] Step 3 of 8 (Replace new bundle in group relationship table): Replacement completed
> >  [notice] Step 4 of 8 (Updates the target type of Entity Reference fields): Process finished.
> >  [notice] Step 5 of 8 (Remove old configurations): Process finished.
> >  [notice] Step 6 of 8 (Update entity definition installed): Process finished.
> >  [notice] Step 7 of 8 (Update views configuration): Process finished.
> >  [notice] Step 8 of 8 (Final Step): Congratulations, you upgraded the module Group!. Now you can uninstall this module.
> >  [notice] Update completed: group2to3_update_9001
>  [success] Finished performing updates.
 [success] Config import start.