Add a column with GUID values

[guyatisk]

I have a power query, where I need to add a Record ID and I usually use GUID values.  I have this, but it is getting an error: 

Table.TransformColumnTypes(Table.AddColumn(#"Renamed columns 1", "RecordID", each text.NewGuid()), {{"RecordID", type text}}).

What should the syntax be to get a GUID value?  It thought it was Text.NewGUID, but maybe I am wrong?

Thanks for the information

[AlexisOlson · Accepted solution]

M is case sensitive, so be sure to write Text.NewGuid() and not text.NewGuid() or Text.NewGUID or some other variation.