IP SLA %Grp Scheduler: operations are not configured

[mygsp06]

Ive upgraded an ISR4451 (previously configured with a number of IP SLA probes) to 17.6.3 but since the upgrade the IP SLA GROUP SCHEDULE line of code has been removed from the configuration. When I try to re add;

HOSTNAME(config)# ip sla group-schedule 1 100-1200 schedule-period 300 start-time now forever

I receive - %Grp Scheduler: operations are not configured.

All the probes are still configured but any ideas why I'm getting the above % message?

[MHM Cisco World]

ip sla group schedule 1 100-1200 schedule-period 300 start-time now forever <<- is there any IP SLA 1 in your config ? change the group number to any value not match IP SLA 

[mygsp06]

Hi MHM Cisco World, Ive tried changing the schedule number to a few options but each time the CLI returns - (%Grp Scheduler: operations are not configured)

[MHM Cisco World]

Share this please 

ip sla group schedule ?

[mygsp06]

There is no IP SLA GROUP SCHEDULE in the running configuration but this is what I'm trying to input;

(config)#ip sla group schedule 1 100-1835 schedule-period 300 frequency 300 start-time now life forever

[MHM Cisco World]

I want to see help ""?"" After group schedule 

[mygsp06]

(config)#ip sla group schedule ?

  <1-2147483647>  Group schedule entry number

[mygsp06 · Accepted solution]

FIXED! It appears that the group schedule doesn't like non contiguous entries! Used (config)#ip sla group schedule 1      and added smaller contiguous blocks and its taken that.

[MHM Cisco World]

thanks a lot for update me 
have a nice day 
MHM