Create App Engine Backend for Android - Google Tutorial

Question

I am following this tutorial: https://cloud.google.com/developers/articles/how-to-build-mobile-app-with-app-engine-backend-tutorial/

At Setup App Engine Backend Application Project - Step 4, I am stumped. The Create button is grayed out. There is nothing told about configuring the App Engine SDK in any of the preceding steps. And, as you can see that I am in the process of learning this, I don't know any ways to solve this other than searching helplessly in the same tutorial.

If I 'configure sdks', the list is empty and I am led to this link https://cloud.google.com/appengine/downloads?csw=1

If this is the right direction, can anyone help me which one of the four platforms does this tutorial teach with? Can I choose any and still be able to follow the tutorial easily? In case yes, which one of the four Should I choose?

Answer 1

configure your appengine sdk location /eclipse/plugins/com.google.appengine.eclipse.sdkbundle_1.8.6/

Answer 2

The tutorial you are following uses the Java App Engine SDK. Download that and then configure the path to the location you've installed the SDK at. If you've downloaded Google Plugin for Eclipse instead (specified in the tutorial as required) it is already included and you should already have the App Engine SDK for Java.

Do keep in mind that if you want to go live and use Google Cloud Messaging like in the tutorial, you will need a Project Number and API key filled in. You can always do this later and leave it blank for now though. To add them later, edit them in GCMIntentService.java and MessageEndpoint.java respectively.