Module does not install under Drupal 11
$ ddev composer require 'drupal/rsvplist-rsvplist:1.0.x-dev@dev'
Observ result:
Your requirements could not be resolved to an installable set of packages.
Problem 1
- drupal/rsvplist-rsvplist dev-1.0.x requires drupal/core ^10 -> found drupal/core[10.0.0, ..., 10.3.2] but the package is fixed to 11.0.1 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
Update module to be installable under Drupal 11
Update module info file
Check other functions OK
Fixed
1.0
Code