Your project works perfectly fine for me in Worklight 6.1.0.
I've created a new Eclipse workspace and imported the project into it.
I then:
- Right-clicked on the adapter folder ("UserId") and chose Run As > Deploy Worklight adapter
- Right-clicked on the application folder ("WokrlightMobile") and chose Run As > Run on Worklight Development Server
I continued to load to the Worklight Console, clicked on the Android preview icon and application loaded in the MBS. I also received a "success" dialog from the adapter.
Try in a fresh workspace.