Hi,
Below instructions will allow you to work around the issue and complete the exercise.
Please navigate to Exercise - Configure a public load balancer , Activate sandbox, review permissions, sign-in, etc.
Before running the command in step 2, please enter below command so that you can edit the script:
nano create-high-availability-vm-with-sets.sh
Use your arrow keys to navigate down to the --image UbuntuLTS line and change it to --image Ubuntu2204
After you have made the change, press Ctrl-X, Y, then Enter to save and exit the editor. At this point you have "fixed" the file and can continue completing the exercise by running:
bash create-high-availability-vm-with-sets.sh <your learn-xxxx resource group name>
Please note it is critical to enter the correct "learn-xxxxxxxx-" resource group name in the above command. Your resource group name will look similar to "learn-3294a2f5-b8ec-2def-ca62-49e23701bd77". It should update the command to have the correct group name automatically, however, lately there has been a bug whereby it doesn't get updated. You can find the resource group name by opening the Azure portal and clicking on Resource groups.
Please click Accept Answer and upvote if the above was helpful. If something is unclear please add a comment below and I will assist.
Thanks.
-TP