我正在使用Google登录信息构建购物车应用程序，并且已将Firebase用作数据库。我已经创建了一个数据库并将该数据库连接到我的项目，但是当我运行离子服务器时，仿真器不会启动。它带有错误消息。
下面是我的错误日志。
[app-scripts] [12:19:27] typescript: ...ing_cart-
master/node_modules/angularfire2/database/firebase_list_observable.d.ts,
line: 16
[app-scripts] [12:19:27] typescript: ...g_cart-
master/node_modules/angularfire2/database/firebase_object_observable.d.ts,
line: 11
[app-scripts] [12:19:27] typescript: ...g_cart-m
aster/node_modules/angularfire2/database/firebase_object_observable.d.ts,
line: 12
[app-scripts] [12:19:27] typescript: ...g_cart-
master/node_modules/angularfire2/database/firebase_object_observable.d.ts,
line: 13
[ app-scripts] [12:19:27] typescript: ...:/ionic2_firebase_shopping_cart-
master/node_modules/angularfire2/interfaces.d.ts, line: 12
[app-scripts] [12:19:27] typescript: ...:/ionic2_firebase_shopping_cart-m
aster/node_modules/angularfire2/interfaces.d.ts, line: 13
[app-scripts] [12:19:27] typescript: ...:/ionic2_firebase_shopping_cart-
master/node_modules/angularfire2/interfaces.d.ts, line: 14
[app-scripts] [12:19:27] typescript: ...:/ionic2_firebase_shopping_cart-
master/node_modules/angularfire2/interfaces.d.ts, line: 15