note: add ObjCProtocols here

[NathanWalker]

nativescript-photoviewer/src/photoviewer.ios.ts

Line 146 in 58f10d8

private _resolve: () => void;

This I believe needs the static added, for example:

@NativeClass()
class PhotoViewerDelegateImpl extends NSObject implements NYTPhotosViewControllerDelegate {
  static ObjCProtocols = [NYTPhotosViewControllerDelegate];  // add this
  private _resolve: () => void;