Update: the version number
MODIFY
plugin.xml
plugin.xml
<?xml version='1.0' encoding='utf-8'?>
-<plugin id="cordova-plugin-googlemaps" version="2.0.0-beta2" xmlns="http://apache.org/cordova/ns/plugins/1.0" xmlns:android="http://schemas.android.com/apk/res/android">
+<plugin id="cordova-plugin-googlemaps" version="2.0.0-beta2-20170510-1500" 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 />

Update: the version number