Can't use async validators, Object doesn't support property or method 'map'

[benjamin-wilson]

In validate.ts:

return asyncValidator(control).map(v => {
        const secondary = synchronousValid();
        if (secondary || v) { // compose async and sync validator results
          return Object.assign({}, secondary, v);
        }
});

asyncValidator(control) is not an array

My validator looks like this:

...
@Directive({
    selector: "[selector-name][ngModel]",
    providers: [
        {
            provide: NG_ASYNC_VALIDATORS, useExisting: SelectorClass, multi: true
        }
    ]
})

export class SelectorClass implements Validator {
...

[nrgjack]

same issue, my build fails with the source code provided

[goncalolucas]

anyone found a solution?

[benjamin-wilson]

We ended up moving to reactive forms when we couldn't figure out how to do nested forms/validation with ngModel

[genuinefafa]

@benjamin-wilson did you try this out https://github.com/GFoley83/form-example/tree/feature/support-reactive-form