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Why is it being created? Do you have a new Pulumi name which is different from the Pulumi name of he resource in state?

yes earlier
it was like this
```  const eksAddonCoredns = new aws.eks.Addon(
    "eksAddon",
    {
      addonName: "coredns",
      clusterName: prefix,
      resolveConflicts: "OVERWRITE",
      addonVersion: eksAddonCorednsVersion,
    },

    {
      dependsOn: [k8sCluster],
    },
  );```
now it is updated like this

```  const eksAddonCoredns = new aws.eks.Addon(
    "Coredns",
    {
      addonName: "coredns",
      clusterName: prefix,
      resolveConflicts: "OVERWRITE",
      addonVersion: eksAddonCorednsVersion,
    },

    {
      dependsOn: [k8sCluster],
    },
  );```

this part is updated
```new aws.eks.Addon(
    "Coredns"```


So that means that there two different resources. "eksAddon" is being deleted, and "Codedns" is being created.

Pulumi creates new resources before deleting old ones, in order reduce the risk of service interruption.

But because these are both the same resource, with the same ID, the creation fails, because you can't have 2 resources with the same AWS ID.

oh so i should first remove the resource and then recreate reosurce with new name

is that right

You can add an alias to the opts of the resource, so that Pulumi knows that the new resource is actually the old one.

<https://www.pulumi.com/docs/intro/concepts/resources/#aliases>