Update the plugin.xml
MODIFY
plugin.xml
plugin.xml
<?xml version='1.0' encoding='utf-8'?>
-<plugin id="cordova-plugin-googlemaps" version="2.1.0-test-20170924-2124" xmlns="http://apache.org/cordova/ns/plugins/1.0" xmlns:android="http://schemas.android.com/apk/res/android">
+<plugin id="cordova-plugin-googlemaps" version="2.1.0-test-20171026-1815" xmlns="http://apache.org/cordova/ns/plugins/1.0" xmlns:android="http://schemas.android.com/apk/res/android">
<name>cordova-plugin-googlemaps</name>
<js-module name="BaseClass" src="www/BaseClass.js">
<runs />
<js-module name="spherical" src="www/spherical.js">
<runs />
</js-module>
+ <js-module name="poly" src="www/poly.js">
+ <runs />
+ </js-module>
<js-module name="Geocoder" src="www/Geocoder.js">
<runs />
</js-module>

Update the plugin.xml