I have tried this with no luck in Drupal 9.2.5
composer require drupal/fullcalendar
// downloads the Drupal module to the modules/contrib folder.
composer require –prefer-dist composer/installers
//Verify the composer/installers package installed.
// This package facilitates the installation of packages into
// directories other than /vendor (e.g. /libraries) using
// Composer.
Added the following snippet to the repositories section of the composer.json file in your Drupal root folder:
—Begin Code —
{
"type": "package",
"package": {
"name": "fullcalendar/fullcalendar",
"version": "3.9.0",
"type": "drupal-library",
"dist": {
"url": "https://github.com/fullcalendar/fullcalendar/archive/v3.9.0.zip",
"type": "zip"
}
}
}
— End Code —
composer require –prefer-dist ‘fullcalendar/fullcalendar:^3.9.0’
//composer will download the Fullcalendar library
//to the right location
check in admin/modules to make sure they are installed
check of admin/reports/status shows error:
FullCalendar plugin At least 3.3.0
Help Please