When dealing with Kubernetes clusters, it is common to encounter errors. One such error is the “error: exec plugin: invalid apiversion” with the version specified as “client.authentication.k8s.io/v1alpha1”. In this article, we will discuss what this error means and how to troubleshoot it.
Investigating the Error
The “error: exec plugin: invalid apiversion” error is a fairly common one and is usually encountered when creating a Kubernetes cluster. It is caused when the Kubernetes API server fails to recognize the API version specified in the command. The API version specified in this case is “client.authentication.k8s.io/v1alpha1”.
This error is usually seen when the version of Kubernetes being used is outdated. In such cases, the API server may not recognize the specified API version, resulting in the error message.
Troubleshooting the Invalid API Version
The most common way to troubleshoot this error is to update the version of Kubernetes being used. This can be done by running the command “kubectl get nodes”. This command will output the version of Kubernetes being used and can be used to determine if the version is outdated.
If the version is outdated, it should be updated to the latest version. This can be done by running the command “kubectl apply -f ”, where the should be replaced by the path to the yaml file containing the updated version of Kubernetes.
Once the version of Kubernetes has been updated, the error should no longer appear when creating a Kubernetes cluster.
The “error: exec plugin: invalid apiversion” error can be a frustrating one to encounter when creating a Kubernetes cluster. It is usually caused by an outdated version of Kubernetes being used and can be easily fixed by updating the version of Kubernetes to the latest version. Following these steps should help resolve the issue and allow for the creation of a Kubernetes cluster.