“ ?ti tuoba wonk ot tnaw uoy t'ndluow ,gnorw seog esle gnihtemos fi tahw tub nettogrof dna deppord gnieb noitpecxEteStluseRytpmE dnatsrednu nac Ihttps://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0#error-handling talks about these things and how it might be desired for you to add a global error listener that drops exception you agree not to care about, more specifically you can swallow a UndeliverableException that wraps an EmptyResultSetException. It wouldn't be appropriate for Room as a library to do this for you. ”
“ ) mooRxR eht etadpu nac ew ,elbanosaer sdnuos tahT - kOhttps://android.googlesource.com/platform/frameworks/support/+/androidx-master-dev/room/rxjava2/src/main/java/androidx/room/RxRoom.java ) to have helper functions to set this up and then have generated code use a createSingle() function instead of Single.fromCallable. ”