"You attempted to access the _onLookup" error in Engine

[amk221]

I have created a demo app with a simple use of unknownProperty.

Using {{myService.myUnknownProperty}} works in the parent app, but not in the Engine.

Instead, I get the recently added error that informs the user about the changes regarding .get

(Sorry if this is in the wrong repo, the error is coming from ember.js repo not the Engine repo so thought I'd raise here)

[rwjblue]

Thank you for reporting (and for the minimal reproduction)!

[wojm]

I had a similar bug. Was unable to solve it. I documented it here: https://discuss.emberjs.com/t/issues-upgrading-from-2-13-to-3-1/14695/5

[rwjblue]

Should be fixed by #16613

[toranb]

With ember v3.1.3 and engines v0.5.20 I'm still having this problem. Any chance this patch will make its way into 3.1x ?