ngx-sub-form doesn't build with Angular's Ivy compiler

[CyberBotX]

So, Angular 9 just dropped today, and the Ivy compiler is now default. But if I try to build one of my Angular pages that uses ngx-sub-form while using Ivy, I get the following error:

ERROR in CommissionedArt/src/app/Components/input-form.html:1:26 - error TS2740: Type 'TypedFormGroup<InputForm>' is missing the following properties from type 'FormGroup': _parent, _asyncValidationSubscription, _updateAncestors, _setInitialStatus, and 4 more.

I don't get this if I disable Ivy and use the old View Engine compiler instead.

[maxime1992]

Just to have everything linked together: #101, #102

I'll try to look into that asap, thanks @CyberBotX :)

[CyberBotX]

Oh, I probably should also mention that I got this error alongside that one:

CommissionedArt/src/app/app.html:1:13 - error TS2322: Type 'InputForm | null' is not assignable to type 'InputForm'.
  Type 'null' is not assignable to type 'InputForm'.

That one I could solve by just making my dataInput type have | null on it, but it would be nice to not require that too.

[maxime1992]

@CyberBotX can you create a minimal repro and post it on Github or as a zip?

That'd really help me working on the upgrade 🙏

[CyberBotX]

I can, but it might be over the weekend depending on my time. I'll try to get something up sooner if I can.

[maxime1992]

Brilliant, thanks for your help :)

[CyberBotX]

So, I tried to put together an example on StackBlitz here:

https://stackblitz.com/edit/angular-ngx-sub-form-with-ivy

But... it builds and runs just fine over there, despite that I'm using the same versions of the packages and similiar configuration as I have locally. I don't know if it is because StackBlitz isn't building with Ivy (even if "enableIvy": true is included in the configuation) or because of something else in my local setup.