Project.properties missing | Eclipse, SAP NW GW Plugin

Hi experts,

after GW100 I'm trying to "play around" with the SAP NetWeaver Gateway, Eclipse and Android.

I've installed different versions of Eclipse, but I'm unable to run my application.

What I have at the moment:

Eclipse Java EE IDE for Web Developers Juno Service Release 1

ADT 21.1.0

SAP NetWeaver Gateway - xxx 2.6.400

When I try to generate an Android App (File - New - Others - Starter Application Project), everything seems to be fine (I can chose my service from my SAP system). But when I generate the object, I always get the error

Project has no project.properties file! Edit the project properties to set one

What am I doing wrong?

Thanks

Michael