Cannot install on vanilla Drupal 10

Same here, seems like the core_event_dispatcher module is required but its not available in D10.

Sorry I missed this.

Next release in the 2.x (Hook Event Dispatcher 3.x) and 3.x (Hook Event Dispatcher 4.x) branches I'll check this out.

drupal/hook_event_dispatcher:^4.0@RC is available and supports D10 but layout_builder_kit doesn't support this version.

This is what I get:

composer require 'drupal/hook_event_dispatcher:^4.0@RC'

Problem 1
- Root composer.json requires drupal/hook_event_dispatcher ^4.0@RC, found drupal/hook_event_dispatcher[4.0.0-rc1] but these were not loaded, likely because it conflicts with another require.
Problem 2
- drupal/core_event_dispatcher is locked to version 3.3.4 and an update of this package was not requested.
- drupal/core_event_dispatcher 3.3.4 requires drupal/hook_event_dispatcher * -> found drupal/hook_event_dispatcher[1.0.0, ..., 1.29.0, 2.0.0, ..., 2.5.0, 3.0.0-rc1, ..., 3.3.4, 4.0.0-rc1] but these were not loaded, likely because it conflicts with another require.
Problem 3
- drupal/layout_builder_kit is locked to version 2.0.0-alpha2 and an update of this package was not requested.
- drupal/layout_builder_kit 2.0.0-alpha2 requires drupal/hook_event_dispatcher ^3 -> found drupal/hook_event_dispatcher[3.0.0-rc1, ..., 3.3.4] but it conflicts with your root composer.json require (^4.0@RC).

Work has begun on the 3.x branch with the HEC 4.0 and it's working well.

Looking at converting to the new single directory component system at the same time. In theory, people's CSS shouldn't be affected but don't know yet what the impact will be.

Just released 2.0.0-beta1, which installs on PHP 8.1/8.2 and Drupal 10.1/10.2 and uses HED 3.x.

Automatically closed - issue fixed for 2 weeks with no activity.