"argocd-cm" not found

Hello,

I used ArgoCD core, and every time I perform an action with ArgoCD, I encounter this error: FATA[0000] configmap "argocd-cm" not found.

help please

How did you install ArgoCD? It is saying the ConfigMap for ArgoCD is missing.

i installed argocd core with this cmd :
kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/core-install.yaml

kubectl get cm -n argocd
NAME DATA AGE
kube-root-ca.crt 1 17h
argocd-cm 0 17h
argocd-cmd-params-cm 0 17h
argocd-gpg-keys-cm 0 17h
argocd-rbac-cm 0 17h
argocd-ssh-known-hosts-cm 1 17h
argocd-tls-certs-cm 0 17h

Your config map is empty. Refer to this example to set it up:
argocd-cm.yaml example - Argo CD - Declarative GitOps CD for Kubernetes (argo-cd.readthedocs.io)