[warning] The "system_menu_block:welcome" block plugin was not found

I've seen this too. It's not installer-related, there's something wonky in a recipe somewhere. Pretty sure it's the dashboard one, so categorizing this issue under that track until it's proven that it's innocent!

Self-assigning to squash this bug with test coverage.

"system.menu.welcome.yml" is provided by drupal_cms_starter, not the drupal_cms_dashboard.

I can't find any menu link added to the welcome menu outside of starter itself, and afaik config is installed before content in recipes.

Eventually this is a problem that needs to be solved or decided to be ignored. If not, every recipe that provides a menu link needs to depend on the recipe providing the menu itself, which might be un-ideal. Wish we could create content optionally, as we can with config.

Aside of the warning, this works, as the menu link is created even when a menu doesn't exist (yet).

The welcome menu needs to be removed anyway from Drupal CMS.

We could either remove it, or just move the menu into the dashboard recipe. Your choice!

Oh, I just see now the problem is with the block itself, not the menu.

🐛 Calculate dependencies should include block dependencies Active was fixed before tagging alpha1, but we never exported the dashboard again.

With

  config:
    - system.menu.welcome
  module:
    - layout_builder
    - layout_discovery
    - system

the warning still shows though. I guess we need to clear the plugin cache somewhere? This might be a bug somewhere in core (layout builder?), recipe installation system or the dashboard itself.
I'd say layout builder as ddev drush si --yes demo_umami also throws

 [warning] The "field_block:node:page:field_body" block plugin was not found
 [warning] The "extra_field_block:node:page:links" block plugin was not found
 [warning] The "extra_field_block:node:page:content_moderation_control" block plugin was not found
 [warning] The "field_block:node:page:field_body" block plugin was not found
 [warning] The "extra_field_block:node:page:links" block plugin was not found
 [warning] The "extra_field_block:node:page:content_moderation_control" block plugin was not found
 [warning] The "field_block:node:article:field_tags" block plugin was not found
 [warning] The "field_block:node:article:field_media_image" block plugin was not found
 [warning] The "field_block:node:article:field_body" block plugin was not found
 [warning] The "extra_field_block:node:article:links" block plugin was not found
 [warning] The "extra_field_block:node:article:content_moderation_control" block plugin was not found
 [warning] The "field_block:node:article:field_tags" block plugin was not found
 [warning] The "field_block:node:article:field_media_image" block plugin was not found
 [warning] The "field_block:node:article:field_body" block plugin was not found
 [warning] The "extra_field_block:node:article:links" block plugin was not found
 [warning] The "extra_field_block:node:article:content_moderation_control" block plugin was not found

Even if welcome menu will be removed, I'm not closing this as will affect any other block we might have.

This is potentially 🐛 Warnings logged for missing field block plugins when enabling layout builder on an entity view display for the first time Active

I’m downgrading this to a minor bug because:

• Everything still works; there’s just a little warning during an install with Drush only, which our target audience (marketers) won’t use
• This does not affect the UI installer

I’ve got bigger fish to fry at the moment. :) Un-assigning. If anyone else wants to pick this up, please be my guest!

Fixing this as part of 🐛 Help link is hardcoded in Navigation block Active .