Hi, guys, I implemented the map using the steps of the following link

hi, guys, I implemented the map using the steps of the following link
https://github.com/mapsplugin/cordova-plugin-googlemaps-doc/blob/master/v2.0.0/ionic-native/README.md

when I give ionic Cordova run android --prod it gives the following error…

C:\Users\Sam\Documents\Tapir\tapir-client-v2\platforms\android\src\plugin\google\maps\PluginStreetViewPanorama.java:21: error: cannot find symbol
import com.google.android.gms.maps.model.StreetViewSource;
                                        ^
  symbol:   class StreetViewSource
  location: package com.google.android.gms.maps.model
C:\Users\Sam\Documents\Tapir\tapir-client-v2\platforms\android\src\plugin\google\maps\PluginStreetViewPanorama.java:93: error: cannot find symbol
          StreetViewSource source = "OUTDOOR".equals(cameraOpts.getString("source")) ?
          ^
  symbol:   class StreetViewSource
  location: class PluginStreetViewPanorama
C:\Users\Sam\Documents\Tapir\tapir-client-v2\platforms\android\src\plugin\google\maps\PluginStreetViewPanorama.java:94: error: cannot find symbol
              StreetViewSource.OUTDOOR : StreetViewSource.DEFAULT;
              ^
  symbol:   variable StreetViewSource
  location: class PluginStreetViewPanorama
C:\Users\Sam\Documents\Tapir\tapir-client-v2\platforms\android\src\plugin\google\maps\PluginStreetViewPanorama.java:94: error: cannot find symbol
              StreetViewSource.OUTDOOR : StreetViewSource.DEFAULT;
                                         ^
  symbol:   variable StreetViewSource
  location: class PluginStreetViewPanorama
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
4 errors

FAILURE: Build failed with an exception.
type or paste code here

help me how to solve this…

this is project info

    ionic (Ionic CLI) : 3.20.0

global packages:

    cordova (Cordova CLI) : 8.0.0

local packages:

    @ionic/app-scripts : 1.3.4
    Cordova Platforms  : android 7.1.0
    Ionic Framework    : ionic-angular 3.1.1

System:

    Android SDK Tools : 26.1.1
    Node              : v6.11.1
    npm               : 3.10.10
    OS                : Windows 10

Environment Variables:

    ANDROID_HOME : C:\Sdk

Misc:

    backend : pro
type or paste code here

I have a PLAY_SERVICES_VERSION like this in my config file

<plugin name="cordova-plugin-googlemaps" spec="^2.3.8"> <variable name="API_KEY_FOR_ANDROID" value="......................." /> <variable name="API_KEY_FOR_IOS" value="........................." /> <variable name="PLAY_SERVICES_VERSION" value="15.0.1" /> <variable name="ANDROID_SUPPORT_V4_VERSION" value="26.1.0" /> </plugin>

but it generates the same error…

Please research as much as possible.