Kubernetes Dashboard Results in Resource Not Found-CodePudding

I'm having some problems with the Kubernetes Dashboard not showing any information when I tried to access it:

I checked the version that I'm using:

$ kubectl version --short
Flag --short has been deprecated, and will be removed in the future. The --short output will become the default.
Client Version: v1.26.0
Kustomize Version: v4.5.7
Server Version: v1.26.0 k3s1

Both the client and the server versions are indeed the same, so I'm not sure what is causing the Dashboard UI to not show any information? Any ideas?

EDIT: I even lowered the version of my kubectl and my k3s server, but still I do not see the Unknown error go away.

Client Version: v1.25.0
Kustomize Version: v4.5.7
Server Version: v1.25.6 k3s1

$ kubectl get clusterrolebinding admin-user
NAME         ROLE                        AGE
admin-user   ClusterRole/cluster-admin   19h

$ kubectl get sa -n kubernetes-dashboard
NAME                   SECRETS   AGE
default                0         19h
kubernetes-dashboard   0         19h
admin-user             0         19h

CodePudding user response：

This might happen for various reasons like Either ClusterRoleBinding or ServiceAccount is not created properly. Sometimes it will be related to Compatibility as well. Try these troubleshooting steps

In case if you are creating a Service Account and ClusterRoleBinding manually then make sure you are creating in proper namespace and giving proper configurations and roles.

you can use these commands to get the detials about SA and rolebindings

$kubectl get sa -n kubernetes-dashboard
NAME                   SECRETS   AGE
admin-user             0         61m
    
$kubectl get clusterrolebinding admin-user
NAME         ROLE                        AGE
admin-user   ClusterRole/cluster-admin   62m

Check whether the dashboard version is compatible with the server version. You can find the compatibility information in official kubernetes-dashboard page on github. If your server is not compatible then try lowering the version.(In your case try lowering the version to 1.25).
Check this official documentation for detailed kubernetes-dashboard troubleshoot

These SO links have similar issues SO1 SO2