| Q | A | ---------------- | ----- | Bug report? | no | Feature request? | yes | BC Break report? | no | RFC? | no | Symfony version | >= 4.1 If an error is thrown, Symfony wraps it into a `FatalThrowableError`. The consequence is that the actual error class is lost. <img width="382" alt="bildschirmfoto 2018-02-02 um 20 09 33" src="https://user-images.githubusercontent.com/1506493/35750878-c5c24788-0856-11e8-85be-c3e3860006ee.png"> What I'd like to see instead is this. <img width="402" alt="bildschirmfoto 2018-02-02 um 20 08 42" src="https://user-images.githubusercontent.com/1506493/35750894-d30f59e4-0856-11e8-96a3-bb71a6f5d7a6.png"> I think, we can fix this issue without switching the whole error handling to `Throwable` (see #22128 for that).