After installing I immediately received this error on my project. After a little debugging I was able to trace this back to a Factory service. The factory service is defined as follows and the service id that returns null when $service = parent::get($id, $invalid); is called is some_factory_service. When JMSDebuggingBundle is not installed everything works fine, so I'm not sure if this is just a specific problem to factory services or something else.
Any ideas? Thanks!
app.some_factory:
class: App\SomeBundle\Factory\SomeFactory
arguments:
- "@some_service"
- "@another_service"
some_factory_service:
class: App\SomeBundle\Entity\SomeEntity
factory_service: app.some_factory
factory_method: get