Ec2SubnetInvalidConfiguration

‘NoneTyep’ object is not iterable

The connection to the server localhost:8080 was refused - did you specify the right host or port?

[Unable to connect to the server: getting credentials: decoding stdout: no kind "ExecCredential" is registered for version "client.authentication.k8s.io/v1alpha1" in scheme "pkg/client/auth/exec/exec.go:62"](https://sangjun.notion.site/Unable-to-connect-to-the-server-getting-credentials-decoding-stdout-no-kind-ExecCredential-is-r-944f4b73cc6b449e8e5e5e56cba7e1c6)

[Error: INSTALLATION FAILED: Kubernetes cluster unreachable: exec plugin: invalid apiVersion "client.authentication.k8s.io/v1alpha1"](https://sangjun.notion.site/Error-INSTALLATION-FAILED-Kubernetes-cluster-unreachable-exec-plugin-invalid-apiVersion-client--8d255fd95b8943ceb0c53251cd7fe29f)

standard_init_linux.go:228: exec user process caused: exec format error