I think the reason you're having trouble is because you're attempting to install a App, where you're supposed to install a Tile. The two are different in both their use-cases and implementation; though a Tile is a synthesized App for runtime, it's locations options are more limited and predefined for more of a dashboard experience to a particular place, user, or news and can be limited further in the definition.json (e.g. wide, narrow, hero, all).
The places that are viewable by an App is defined in the app.xml file. You can read more about the "simpleapp" that's packaged in the Jive Node SDK here: App Action Contribution Reference
Thanks for your response Rashed.
Actually, I attempted to install both an App and a Tile and neither worked as expected. They don't appear in either the Apps dropdown or the Tile Categories respectively. I have sent this issue on to the Jive support group. So far, it has not been resolved. The problem is also happening to them. When I find out more, I will reply here for others who may be experiencing the same issues.