There is an apparent bug (or family of bugs) in the documentation "julia.pdf".
The document says unsigned integer is of type UInt, while the julia system only accepts Uint (lowercase "i" instead of uppercase "I"). This holds for UInt64/Uint64, etc... The documentation should be fixed... (or the implementation made to be in accordance with the documentation...) (Sorry if this is a repeat, but I searched and didn't find an early note of this...) Cheers, Ron