stepper: Type 'FormGroup' is not assignable to type 'FormControlLike'

[kKen94]

Is it normal?

[andrewseguin]

Which versions of Angular and Material are you using?

[kKen94]

With the 8.2.0 update this error disappear but now i have this

And with all this changes i don't understand if it is my fault, or material or something else

[andrewseguin]

Without having access to your code, it's really difficult to diagnose this. Is the error being thrown from one of your components?

[Splaktar]

I'm seeing this when building the dev-app with Ivy as well:

ERROR: /Users/splaktar/Git/angular/material2/src/dev-app/stepper/BUILD.bazel:5:1: Couldn't build file src/dev-app/stepper/stepper-demo-module.ngfactory.js: Compiling Angular templates (ngtsc - devmode) //src/dev-app/stepper:stepper failed (Exit 1)
src/dev-app/stepper/stepper-demo.html(8,33): error TS2322: Type 'AbstractControl | undefined' is not assignable to type 'FormControlLike | undefined'.
  Type 'AbstractControl' is missing the following properties from type 'FormControlLike': registerOnChange, registerOnDisabledChange
src/dev-app/stepper/stepper-demo.html(26,33): error TS2322: Type 'AbstractControl | undefined' is not assignable to type 'FormControlLike | undefined'.
  Type 'AbstractControl' is not assignable to type 'FormControlLike'.
src/dev-app/stepper/stepper-demo.html(56,13): error TS2739: Type 'FormGroup' is missing the following properties from type 'FormControlLike': registerOnChange, registerOnDisabledChange
src/dev-app/stepper/stepper-demo.html(75,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.

and

ERROR: /Users/splaktar/Git/angular/material2/src/material-examples/material/stepper/BUILD.bazel:5:1: Couldn't build file src/material-examples/material/stepper/module.ngfactory.js: Compiling Angular templates (ngtsc - devmode) //src/material-examples/material/stepper:stepper failed (Exit 1)
src/material-examples/material/stepper/stepper-editable/stepper-editable-example.html(6,13): error TS2739: Type 'FormGroup' is missing the following properties from type 'FormControlLike': registerOnChange, registerOnDisabledChange
src/material-examples/material/stepper/stepper-editable/stepper-editable-example.html(17,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-errors/stepper-errors-example.html(2,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-errors/stepper-errors-example.html(13,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-label-position-bottom/stepper-label-position-bottom-example.html(2,15): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-label-position-bottom/stepper-label-position-bottom-example.html(13,15): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-optional/stepper-optional-example.html(6,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-optional/stepper-optional-example.html(17,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-overview/stepper-overview-example.html(5,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-overview/stepper-overview-example.html(16,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-states/stepper-states-example.html(2,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-states/stepper-states-example.html(13,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-vertical/stepper-vertical-example.html(5,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.
src/material-examples/material/stepper/stepper-vertical/stepper-vertical-example.html(16,13): error TS2322: Type 'FormGroup' is not assignable to type 'FormControlLike'.

[Splaktar]

It looks like PR #16373 has a fix for this.

[Splaktar]

@devversion I think that the FormControlLike to AbstractControlLike changes in PR #16373 will solve this. I will pull those changes into PR #17392.