Argument of type '(DbTypesEnum DbEnum, Type?, IByteParser)' cannot be used for parameter 'item' of type '(DbTypesEnum DbEnum, Type type, IByteParser parser)' in 'void List<(DbTypesEnum DbEnum, Type type, IByteParser parser)>.Add((DbTypesEnum DbEnum, Type type, IByteParser parser) item)' due to differences in the nullability of reference types.

Argument of type '(DbTypesEnum DbEnum, Type?, IByteParser StringAscii)' cannot be used for parameter 'item' of type '(DbTypesEnum DbEnum, Type type, IByteParser parser)' in 'void List<(DbTypesEnum DbEnum, Type type, IByteParser parser)>.Add((DbTypesEnum DbEnum, Type type, IByteParser parser) item)' due to differences in the nullability of reference types.

Possible null reference assignment.

Possible null reference argument for parameter 't' in 'int Marshal.SizeOf(Type t)'.

Cannot convert null literal to non-nullable reference type.

Possible null reference assignment.

Possible null reference assignment.

Possible null reference argument for parameter 'collection' in 'void List<byte>.AddRange(IEnumerable<byte> collection)'.

Possible null reference assignment.