Can it be that the app “calender_ressource_management” is still buggy? I installed the whole thing under NC 24 via the app store and can confirm this post here.
Oh yes,…a graphical interface to manage/generate resources would be really desirable. 
You can answer the question yourself. The latest app version is v0.3.1 (!!!) … and there are still open issues which need to be fixed 
OK, then it is again more like a beta version,…which is no longer called beta. 
So still far away for enterprise use. Too bad, would be an important addition. Especially a graphical backend for creating/managing resources would make sense.