Linux challenges . File permissions. What is wrong here

Hello,

Can someone explain what I do here wrong ?

[tony@stapp01 ~]$ sudo setfacl -m u:garret:r /etc/resolv.conf 
setfacl: Option -m: Invalid argument near character 3

the other one who looks exactlty like this works fine

Does the user garret exist? Check with id garret.

Thanks
Another one solved