What is being asked for with FortiGate1*IP and FortiGate2*IP

[Systemgeek-louis]

In FGCP_DualAZ_ExistingVPC.template what am I supposed to put in for FortiGate1PublicIP,FortiGate1PrivateIP,FortiGate1HAsyncIP,FortiGate1HAmgmtIP and the FortiGate2 versions? I have tried the same subnet CIDR as the subnets used for each type of IP. I have also tried a single ip with a /32 that is in the same CIDR range. Each and every time I get the following error:
"Address does not fall within the subnet's address range (Service: Ec2, Status Code: 400, Request ID: 2e533981-aa8b-4bbb-acdc-a02b44c13307)".

Thanks