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yes, pick another subnet :slightly_smiling_face: you can't have two subnets with the same cidr

<@UCWG26BH7> After creating a VPC and subnet through `pulumi up` with the code above,
In the existing code, if the “resource_name” of the subnet is changed and then `pulumi up` is performed again, there seems to be a conflict.

you need to add a `deleteBeforeReplace` resource option: <https://www.pulumi.com/docs/intro/concepts/resources/options/deletebeforereplace/>