Problems with whitelist plugin and android (first try)

am developing am app that works great for iOS, using ionic. In trying to test for Android for the first time by doing ionic build android and it compiled fine. When I installed it on my android device, I noticed all network access was prohibited. On further investigation, I read I needed to add the whitelist plugin

The steps I followed:

project root:

ionic ionic plugin add https://github.com/apache/cordova-plugin-whitelist.git

(at my project root) Then, I added the following to config.xml:

<access origin="*"/>
<allow-navigation href="*"/>
<allow-intent href="*"/>

When I do an ionic build android, I now get a compilation error:

projects/phonegap/zmNinja/platforms/android/src/org/apache/cordova/whitelist/WhitelistPlugin.java:42: cannot find symbol
symbol  : method parse(android.content.Context)
location: class org.apache.cordova.whitelist.WhitelistPlugin.CustomConfigXmlParser
        new CustomConfigXmlParser().parse(context);

Incidentally, I also get various warnings (which occurred before as well, but did not affect app compilation) of the sort:

 major version 51 is newer than 50, the highest major version supported by this compiler.
It is recommended that the compiler be upgraded.

Can someone advice on how I fix that parsing error? I’m very new to Android with ionic.

Info:

OS: Mac OS X Yosemite
Node Version: v0.12.1
Cordova CLI: 4.3.0
Ionic CLI Version: 1.3.18
Xcode version: Xcode 6.3.1 Build version 6D1002 
ios-sim version: 3.1.1 
ios-deploy version: Not installed

I also have Android SDK version 21 & 22 installed. I believe cordova needs 21.

Solved the problem. The error was due to crosswalk.
Updated ionic CLI, upgraded cordova to 5, removed the cross walk plugin, added it back and compilation works