Consider this line as an example:
constructor(private elementRef: ElementRef, private zone: NgZone) {}
In order for the downgrade to be successful without any errors, I must remove the parameters from the constructor. Otherwise, I encounter the following message:
(SystemJS) Can't resolve all parameters for (?)
To eliminate the error related to element ref, I used:
@ViewChild('myname') divElementRef:ElementRef;
However, I am unable to find a solution on how to declare NgZone. It always shows up as undefined and I cannot perform actions with it. If anyone knows how I can instantiate ngZone outside the constructor or explain the error while downgrading component, that would be greatly appreciated.
Should the constructor parameters be included in the input when downgrading a component?
angular.module('myModule').directive('myLabel', downgradeComponent({component: MyLabelComponent, inputs: ['text'] }) as angular.IDirectiveFactory)
If the constructor of MyLableComponent appears like this:
constructor(private elementRef: ElementRef) {}
I will receive an error message. It would be helpful if someone could clarify the reason behind this issue. Removing the constructor parameters resolves the problem completely.