Cannot use Pick Result after installing the plugins

[Jayprince20]

`import 'package:flutter/material.dart'; import 'package:google_maps_place_picker/google_maps_place_picker.dart'; import 'package:google_maps_flutter/google_maps_flutter.dart';

import 'APIKeys.dart';

class LocationSearch extends StatefulWidget { static final kInitialPosition = LatLng(-33.8567844, 151.213108); @override _LocationSearchState createState() => _LocationSearchState(); }

class _LocationSearchState extends State {

PickResult selectedPlace; @override Widget build(BuildContext context) { return Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, crossAxisAlignment: CrossAxisAlignment.center, children: [ RaisedButton( child: Text("Load Google Map"), onPressed: () { Navigator.push( context, MaterialPageRoute( builder: (context) { return PlacePicker( apiKey: APIKeys.apiKeys, initialPosition: HomePage.kInitialPosition, useCurrentLocation: true, selectInitialPosition: true,

                      //usePlaceDetailSearch: true,
                      onPlacePicked: (result) {
                        selectedPlace = result;
                        Navigator.of(context).pop();
                        setState(() {});
                      },
                      //forceSearchOnZoomChanged: true,
                      //automaticallyImplyAppBarLeading: false,
                      //autocompleteLanguage: "ko",
                      //region: 'au',
                      //selectInitialPosition: true,
                      // selectedPlaceWidgetBuilder: (_, selectedPlace, state, isSearchBarFocused) {
                      //   print("state: $state, isSearchBarFocused: $isSearchBarFocused");
                      //   return isSearchBarFocused
                      //       ? Container()
                      //       : FloatingCard(
                      //           bottomPosition: 0.0, // MediaQuery.of(context) will cause rebuild. See MediaQuery document for the information.
                      //           leftPosition: 0.0,
                      //           rightPosition: 0.0,
                      //           width: 500,
                      //           borderRadius: BorderRadius.circular(12.0),
                      //           child: state == SearchingState.Searching
                      //               ? Center(child: CircularProgressIndicator())
                      //               : RaisedButton(
                      //                   child: Text("Pick Here"),
                      //                   onPressed: () {
                      //                     // IMPORTANT: You MUST manage selectedPlace data yourself as using this build will not invoke onPlacePicker as
                      //                     //            this will override default 'Select here' Button.
                      //                     print("do something with [selectedPlace] data");
                      //                     Navigator.of(context).pop();
                      //                   },
                      //                 ),
                      //         );
                      // },
                      // pinBuilder: (context, state) {
                      //   if (state == PinState.Idle) {
                      //     return Icon(Icons.favorite_border);
                      //   } else {
                      //     return Icon(Icons.favorite);
                      //   }
                      // }a,
                    );
                  },
                ),
              );
            },
          ),
          selectedPlace == null ? Container() : Text(selectedPlace.formattedAddress ?? ""),
        ],
      ),
    );

} }

`