CronExpression missing dependency

[njoubert-cleverage]

Description

When setting cron type on ProcessScheduleCrudController add, error occurred:

You cannot use "Symfony\Component\Scheduler\Trigger\CronExpressionTrigger" as the "cron expression" package is not installed. Try running "composer require dragonmantank/cron-expression".

Requirements

• Documentation updates
  • Reference
  • Changelog
• Unit tests

Breaking changes

[xaviermarchegay]

It is really required in this package?

The scheduler package specifies that it is mandatory only if you want to use the CronExpression.

https://symfony.com/doc/current/scheduler.html#cron-expression-triggers

[njoubert-cleverage]

Yes it is, when using ProcessScheduleType->cron