I think this maybe the reason why some systems keep encountering database error. It seems new update uses function that doesn’t exist in older .NET Framework/Mono version.
12/16 14:17:06 Critical: Library.Init: System.TypeInitializationException: The type initializer for ‘PetitSearch.Analysis.CommonWordsCollection’ threw an exception. —> System.MissingMethodException: Method not found: ‘System.Collections.Generic.HashSet1<!!0> System.Linq.Enumerable.ToHashSet(System.Collections.Generic.IEnumerable1<!!0>)’.
at PetitSearch.Analysis.CommonWordsCollection…cctor()
— End of inner exception stack trace —
at PetitSearch.SearchIndex1..ctor(DocumentPropertyContainer1 propertyContainer, Boolean storeDocuments)
at Sooloos.Broker.Music.LibrarySearchIndex…ctor()
at Sooloos.Broker.Music.LibraryIndex…ctor(Library library)
at Sooloos.Broker.Music.Library.Init(Database db)