Unrecognized option: operationProfiling.slowOpThresholdsMs

Hi - I’m working the lab ’ Logging to a Different Facility’ and when I try to run mongod using my config file I get the error posted above. This is my file:
storage:
dbPath: “/var/mongodb/db”
systemLog:
path: “/var/mongodb/db/mongod.log”
destination: “file”
logAppend: true
net:
port: 27000
bindIp: “127.0.0.1,192.168.103.100”
security:
authorization: “enabled”
operationProfiling:
slowOpThresholdMs: 50
mode: slowOp
slowOpSampleRate: 1.0
processManagement:
fork: true

Am I missing something? As far as I could find the operationProfiling section I’ve included seems correct… Thanks;
Jim

OK, figured it out. Apparently someone neglected to run through the operations in the Lecture Notes.
As a side note, I put the slowOp parameter in quotes, but not sure if that makes a difference. Looks like I am good to go.
– Jim