fixed

ngsw-config.json

@@ -23,14 +23,6 @@
           "/*.(eot|svg|cur|jpg|png|webp|gif|otf|ttf|woff|woff2|ani)"
         ]
       }
-    }, {
-      "name": "maps",
-      "installMode": "lazy",
-      "resources": {
-        "urls": [
-          "https://maps.googleapis.com/maps/**"
-        ]
-      }
     }
   ]
 }

src/app/views/home/home.component.ts

@@ -2,7 +2,7 @@ import {Component} from "@angular/core";
 import {Observable, timer} from "rxjs";
 import {map, take} from "rxjs/operators";
 import {Router} from "@angular/router";
-import {SyncService} from "../map/sync.service";
+import {SyncService} from "../../services/sync.service";
 
 const chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';