我刚刚实现了一个Auth堆栈，而我的TabNavigator遇到了问题-当我单击标签导航器中的第二个“收藏夹”标签，并在开关中引用了MainNavigator时，消息There is no route named 'Favourites' in the navigator with the key 'Dashboard. Must be one of: 'Dashboard,Admin'。在我引入开关导航器并将MainNavigator放入我的appContainer中之前，这一切工作得很好。有什么线索吗？

    import React from "react";
    import { Platform,Text } from "react-native";

    import { createAppContainer,createSwitchNavigator} from "react-navigation";
    import { createStackNavigator } from "react-navigation-stack";
    import { createDrawerNavigator } from "react-navigation-drawer";
    import { createBottomTabNavigator } from "react-navigation-tabs";
    import { createMaterialBottomTabNavigator } from "react-navigation-material-bottom-tabs"; 

    //Components
    import DashboardScreen from "../screens/DashboardScreen";
    import MapScreen from "../screens/MapScreen";
    import VenueOverviewScreen from "../screens/VenueOverviewScreen";
    import VenueDetailScreen from "../screens/VenueDetailScreen";
    import QRCodeScanScreen from "../screens/QRCodeScanScreen";
    import FavouritesScreen from "../screens/FavouritesScreen";
    import AdminVenueScreen from "../screens/admin/AdminVenueScreen";
    import AdminUserListScreen from "../screens/admin/AdminUserListScreen";
    import AdminUserDetailScreen from "../screens/admin/AdminUserDetailScreen";

    import AuthScreen from "../screens/auth/AuthScreen";

    //Misc
    import Colors from "../constants/Colors";
    import { Ionicons } from "@expo/vector-icons";

    //Default Nav
    const defaultNavOptions = {
      headerStyle: {
        backgroundColor: Colors.brownPrimaryDark
      },headerTitleStyle: {
        fontFamily: "roboto-regular"
      },headerTintColor: "white"
    };

    //Default Admin
    const defaultAdminNavOptions = {
      headerStyle: {
        backgroundColor: Colors.greenPrimary
      },headerTintColor: "white"
    };

    //Main Stack
    const HomeNavigator = createStackNavigator(
      {
        Dashboard: DashboardScreen,Map: MapScreen,Venues: VenueOverviewScreen,VenueDetail: VenueDetailScreen,},{
        defaultNavigationOptions: defaultNavOptions
      }
    );

    //Fav Stack
    const FavNavigator = createStackNavigator(
      {
        Favourites: FavouritesScreen
      },{
        defaultNavigationOptions: defaultNavOptions
      }
    );

    //AdminStack
    const AdminNavigator = createStackNavigator(
      {
        Admin: AdminVenueScreen,AdminUserList: AdminUserListScreen,AdminUserDetail: AdminUserDetailScreen,QRCodeScan: QRCodeScanScreen
      },{
        defaultNavigationOptions: defaultAdminNavOptions
      }
    );

    //Tab Config
    const tabScreenconfig = {
      Home: {
        screen: HomeNavigator,navigationOptions: {
          tabBarLabel:
            Platform.OS === "android" ? (
              <Text style={{ fontFamily: "roboto-regular" }}>Dashboard</Text>
            ) : (
              "Dashboard"
            ),tabBarIcon: tabInfo => {
            return <Ionicons name="ios-home" size={23} color={tabInfo.tintColor} />;
          },//tabBarColor: Colors.greyDark,//only shifting effect

        }
      },Favourites: {
        screen: FavNavigator,navigationOptions: {
          tabBarLabel:
            Platform.OS === "android" ? (
              <Text style={{ fontFamily: "roboto-regular" }}>Favourties</Text>
            ) : (
              "Favourties"
            ),tabBarIcon: tabInfo => {
            return <Ionicons name="ios-star" size={23} color={tabInfo.tintColor} />;
          },//tabBarColor: Colors.greenPrimary //only shifting effect onPress
        }
      }
    };

    const TabNavigator =
      Platform.OS === "android"
        ? createMaterialBottomTabNavigator(tabScreenconfig,{
            activeTintColor: Colors.brownSecondaryLight,shifting: true,barStyle: { backgroundColor: '#eee' },activeColor: Colors.greyDarker,inactiveColor:'#ccc',})
        : createBottomTabNavigator(tabScreenconfig,{
            tabBarOptions: {
              labelStyle: {
                fontFamily: "roboto-regular",fontSize: 15
              },activeTintColor: Colors.greenPrimary,}

          });

    const MainNavigator = createDrawerNavigator(
      {
        Dashboard: {
          screen: TabNavigator,navigationOptions: {
            drawerLabel: "Dashboard",drawerIcon: drawerConfig => (
              <Ionicons
                name="ios-home"
                size={23}
                color={drawerConfig.tintColor}
              />
            )
          }
        },Admin: {
          screen: AdminNavigator,navigationOptions: {
            drawerLabel: "Admin",drawerIcon: drawerConfig => (
              <Ionicons
                name="ios-lock"
                size={23}
                color={drawerConfig.tintColor}
              />
            )
          }
        }
      },{
        contentOptions: {
          activeTintColor: Colors.greenPrimary,itemsContainerStyle: {
            marginVertical: 0
          },iconContainerStyle: {
            opacity: 1
          }
        },drawerPosition: "right",}
    );



const AuthNavigator = createStackNavigator(
  {
    Auth: AuthScreen
  },{
    headerMode: "none",navigationOptions: {
      headerVisible: false
    }
  }
);

const MainAuthNavigator = createSwitchNavigator({
  Auth: AuthNavigator,Dashboard: MainNavigator,//User
});

export default createAppContainer(MainAuthNavigator);