I'm attempting to use Crosswalk but unable to build after installation

I’m working on an app that uses video. I was having issues, after some research some suggested switching to crosswalk fixed their issue.

After installation I try to build and get an error:

You may not have the required environment or OS to build this project
Error: /Users/andrew/Desktop/projects/ionic360/project1/project1/platforms/android/cordova/build: Command failed with exit code 1
    at ChildProcess.whenDone (/usr/local/lib/node_modules/cordova/node_modules/cordova-lib/src/cordova/superspawn.js:139:23)
    at ChildProcess.emit (events.js:110:17)
    at maybeClose (child_process.js:1015:16)
    at Process.ChildProcess._handle.onexit (child_process.js:1087:5)

If I remove crosswalk, the issue is fixed. I have Android SDK 23, 21, and 19 installed. This (https://disqus.com/home/discussion/ionic/crosswalk_comes_to_ionic_10/) talked about going to the project.properties file and making sure “target=” was set to “android-21” and mine is.