I am unable to use the delimit command.

Asking for help with
Code:
help delimit
Gives the following syntax:

#delimit { cr | ; }

and the following example:
Code:
 #delimit ;
But I have no success, Stata throws an error when I try
Code:
. #delimit ;
Unknown #command
Or:
Code:
. #delimit cr
Unknown #command
Browsing the internet, I find no reports on such a problem. I have Stata 15.1 and have loaded a data file. I would be thankful for help.

Christopher Bratt