How to gracefully composer remove drupal/node_revision_generate

The node revision generate module is just for test pourpose, so this module don;t made nothing in your site other than generate revisions to test the node revision generate module, it was removed on the latest version.

You can do the following

- composer require 'drupal/node_revision_delete:^1.0@RC'
- uninstall the module
- export the configs
- composer require 'drupal/node_revision_delete:^2.0@RC'

I do not know exactly how to do with "export the configs".
I have accessed Admin > Configuration > Configuration synchronization > Export > Single item, and found
Configuration type: simple configuration
Configuration name: node_revision_delete.settings
Configuration: disable_automatic_queueing: false
Filename: node_revision_delete.settings.yml

I have done:
composer require 'drupal/node_revision_delete:^1.0@RC'
[no error]
composer remove 'drupal/node_revision_generate'
[no error]
composer require 'drupal/node_revision_delete:^2.0@RC'
[node_revision_generate reported as missing at Status report]
composer remove 'drupal/node_revision_generate'
[no change, same error]
composer remove 'drupal/node_revision_delete"
[node_revision_delete and node_revision_generate reported as missing at Status report]
composer require 'drupal/node_revision_delete:^1.0@RC'
[no error]

So, it means that I have to stay with 'drupal/node_revision_delete:^1.0@RC'.

- composer require 'drupal/node_revision_delete:^1.0@RC'
- drush pmu -y node_revision_generate
- drush cex
- composer require 'drupal/node_revision_delete:^2.0@RC'

Done successfully. Thank you!

I had to use "sudo drush cex". Any need to keep the exported .../sync folder?

After the above, I edited a page (no 'Create new revision has been checked'). Upon saving, the following error appeared. The saving was not successful.:

The website encountered an unexpected error. Try again later.

TypeError: Drupal\node_revision_delete\NodeRevisionDelete::__construct(): Argument #1 ($entity_type_manager) must be of type Drupal\Core\Entity\EntityTypeManagerInterface, Drupal\Core\Config\ConfigFactory given, called in /var/www/html/web/core/lib/Drupal/Component/DependencyInjection/Container.php on line 259 in Drupal\node_revision_delete\NodeRevisionDelete->__construct() (line 61 of modules/contrib/node_revision_delete/src/NodeRevisionDelete.php).

I executed composer remove 'drupal/node_revision_delete'. The following error was reported by the Status report:

The website encountered an unexpected error. Try again later.

Drupal\Core\Extension\Exception\UnknownExtensionException: The module node_revision_delete does not exist or is not installed. in Drupal\Core\Extension\ExtensionList->getExtensionInfo() (line 348 of core/lib/Drupal/Core/Extension/ExtensionList.php).The website encountered an unexpected error. Try again later.
Drupal\Component\Plugin\Exception\PluginException: Plugin (node_revision_delete) instance class "Drupal\node_revision_delete\Plugin\QueueWorker\NodeRevisionDelete" does not exist. in Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass() (line 97 of core/lib/Drupal/Component/Plugin/Factory/DefaultFactory.php).

I executed composer require 'drupal/node_revision_delete'. No error was reported. But when I edited the page again, the same error appeared again.

I selected Admin > Extend > Note Revision Delete > Configure (I had not configured it after the re-installation pursuant to the above), the following error message appeared:

The website encountered an unexpected error. Try again later.

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "plugin.manager.node_revision_delete". in Drupal\Component\DependencyInjection\Container->get() (line 157 of core/lib/Drupal/Component/DependencyInjection/Container.php).The website encountered an unexpected error. Try again later.

I executed composer require 'drupal/node_revision_delete:^1.0@RC', no error message appeared. node_revision_generate was also back, but I did not select it.

I edited the page again and saved it. No error.

I again selected Admin > Extend > Note Revision Delete > Configure, the following error message appeared:

The website encountered an unexpected error. Try again later.

TypeError: Drupal\node_revision_delete\NodeRevisionDelete::getRelativeTime(): Argument #2 ($number) must be of type int, null given, called in /var/www/html/web/modules/contrib/node_revision_delete/src/NodeRevisionDelete.php on line 429 in Drupal\node_revision_delete\NodeRevisionDelete->getRelativeTime() (line 454 of modules/contrib/node_revision_delete/src/NodeRevisionDelete.php).The website encountered an unexpected error. Try again later.
Drupal\Component\Plugin\Exception\PluginException: Plugin (node_revision_delete) instance class "Drupal\node_revision_delete\Plugin\QueueWorker\NodeRevisionDelete" does not exist. in Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass() (line 97 of core/lib/Drupal/Component/Plugin/Factory/DefaultFactory.php).

I went back to the edited and saved page, the following error message appeared:

Warning: Undefined array key "minimum_revisions_to_keep" in Drupal\node_revision_delete\Form\AdminSettingsForm->buildForm() (line 154 of modules/contrib/node_revision_delete/src/Form/AdminSettingsForm.php).
Warning: Undefined array key "minimum_age_to_delete" in Drupal\node_revision_delete\Form\AdminSettingsForm->buildForm() (line 157 of modules/contrib/node_revision_delete/src/Form/AdminSettingsForm.php).
Warning: Undefined array key "when_to_delete" in Drupal\node_revision_delete\Form\AdminSettingsForm->buildForm() (line 161 of modules/contrib/node_revision_delete/src/Form/AdminSettingsForm.php).
Warning: Undefined array key "minimum_age_to_delete" in Drupal\node_revision_delete\NodeRevisionDelete->getContentTypeConfigWithRelativeTime() (line 429 of modules/contrib/node_revision_delete/src/NodeRevisionDelete.php).

I left the site on the browser and came back to the page, the above error message did not appear (but appeared later elsewhere as stated below).

I again selected Admin > Extend > Note Revision Delete > Configure, the following slightly different error message appeared:

The website encountered an unexpected error. Try again later.

TypeError: Drupal\node_revision_delete\NodeRevisionDelete::getRelativeTime(): Argument #2 ($number) must be of type int, null given, called in /var/www/html/web/modules/contrib/node_revision_delete/src/NodeRevisionDelete.php on line 429 in Drupal\node_revision_delete\NodeRevisionDelete->getRelativeTime() (line 454 of modules/contrib/node_revision_delete/src/NodeRevisionDelete.php).

I assessed Admin > Configuration, the following error message re-appeared:

Warning: Undefined array key "minimum_revisions_to_keep" in Drupal\node_revision_delete\Form\AdminSettingsForm->buildForm() (line 154 of modules/contrib/node_revision_delete/src/Form/AdminSettingsForm.php).
Warning: Undefined array key "minimum_age_to_delete" in Drupal\node_revision_delete\Form\AdminSettingsForm->buildForm() (line 157 of modules/contrib/node_revision_delete/src/Form/AdminSettingsForm.php).
Warning: Undefined array key "when_to_delete" in Drupal\node_revision_delete\Form\AdminSettingsForm->buildForm() (line 161 of modules/contrib/node_revision_delete/src/Form/AdminSettingsForm.php).
Warning: Undefined array key "minimum_age_to_delete" in Drupal\node_revision_delete\NodeRevisionDelete->getContentTypeConfigWithRelativeTime() (line 429 of modules/contrib/node_revision_delete/src/NodeRevisionDelete.php).

There should be some problem with updating to ^2.0@RC. Downgrading to ^1.0@RC cannot eliminate it.

The last error message also appeared again when I browsed to the edited page.

I executed the following:
drush pmu -y node_revision_delete
drush cex

The error message did not appear again at the Configuration page or the edited page.

Node_revision_delete and node_revision_generate still appeared under Admin > Extend, but unchecked.

I executed composer remove drupal/node_revision_delete.

No more error, but also no more node_revision_delete.

After this command:

- composer require 'drupal/node_revision_delete:^2.0@RC'

You need to clear the cache:

- drush cr

Done. No problem. Thanks!