Error: You have requested a non-existent service "subman.sync"

@Grevil: Thank you, we should take a look at this together. I'd be even happier to hear from @danielnolde about the idea behind.

@Grevil: Assigning to you as reminder.

This is definitely a misconception in the module, as the "subman" module is a dependency of the implementing modules, like "Billwerk". To install Billwerk, it's required to install Subman, which isn't possible due to this error.

So whatever is the reason here, has to be reengineered or fixed.

Ok, this is not easy to figure out.

First thought, was to define the subman.sync service in subman and mark it as an abstract service. But subman calls the services internally, and we can not instantiate an abstract service. Furthermore instantiating the billwerk service directly in subman wouldn't make sense at all.
My next thought was, to flag the service as "syntetic", so we would instantiate it during runtime, ONLY when billwerk is already installed: https://symfony.com/doc/current/service_container/synthetic_services.html. But this would lead to a hard dependency on billwerk inside subman, which we do not want (since it is the other way around).

I'd say this needs some major refactor, otherwise we could simply ignore the error, since it is installable (although errors get thrown).

We need to use service decoration here, I think. subman.sync service should *never* be defined in Billwerk. That's the wrong namespace.
See:
https://www.previousnext.com.au/blog/decorated-services-drupal-8

Done, works great with the changes in 🐛 Installation error: ServiceNotFoundException: You have requested a non-existent service "subman.sync" Fixed !

Please review.

Well done! Merging in combination with 🐛 Installation error: ServiceNotFoundException: You have requested a non-existent service "subman.sync" Fixed

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