@ionic/app-scripts 3.2.3 shows error Cannot find type definition file for '@types'. on ngc build.
com-darryncampbell-cordova-plugin-intent 2.0.0 onwards needs Android X Support. Unsupported on PGB.
typescript is needed to be less than 2.7 for @angular/compiler-cli
cordova-plugin-ionic-keyboard has problems on greater versions than 2.1.3
jszip has problems with "lie" dependency on greater versions than 3.1
promise.prototype.finally has problems on greater versions than 3.1
cordova-ios: should remain on 5.1 because of: apache/cordova-ios#801