Runs with no disgas and PVTO present runs without warning. flow fail without usefull message if no oil pvt is pressent in deck

[hnil]

There is no checking of consistency in OilPvtMultiplexer.hpp (line 125-126)

Also if no oil properties is present flow fails without usefull meassages.

[andlaus]

IMO incorrect decks should be detected by opm-common's checkDeck() function, not by the user code...