@delon/abc about ngcc-validation

[petebacondarwin]

See angular/angular#32097

[mgechev]

@petebacondarwin looks like this is still failing:

ERROR in The target entry-point "@delon/abc" has missing dependencies:
 - date-fns/add_seconds

Although it looks like a problem with the package itself? I checked date-fns and didn't find add_seconds there.

[petebacondarwin]

Despite not declaring them as a dependency, this library does try to import the date-fns library. See https://github.com/ng-alain/delon/blob/master/packages/abc/count-down/count-down.component.ts#L2-L3

But they use some weird non-peer dependency whitelisting: https://github.com/ng-alain/delon/blob/master/packages/abc/ng-package.json#L11

And unfortunately @delon/abc needs a v1.x version of date-fns but we are installing 2.x version because of @nebular/date-fn, which is why the import is not being found...