beamer noteitem-> error: item undefined in ...

[Neal Becker]

I tried following:
http://tex.stackexchange.com/questions/292816/presentation-using-lyx

I have the following preamble:
\usetheme{CambridgeUS}
\usecolortheme{dolphin}
\usepackage{algorithm}
\usepackage{listings}
\usepackage{caption}
\captionsetup{labelformat=empty,labelsep=none}
\captionsetup[subfigure]{labelformat=empty,labelsep=none}
\usepackage[style=authoryear,autocite=footnote,backend=bibtex,language=english]
{biblatex}
\addbibresource{/home/nbecker/scma-unframed/ascma.bib}
\setbeamertemplate{navigation symbols}{}
\usepackage{pgfpages}
\setbeameroption{show notes}
\setbeameroption{show notes on second screen=right}

I tried adding noteitem, but then running lualatex gives:

! Package xkeyval Error: `item' undefined in families `beamernotes'.

See the xkeyval package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.72 \note[item]{This is a note}