Error: kind ConfigMap

Error: kind ConfigMap with the name "you-configmap-name" in "your-env" already exists in the cluster and wasn't defined in the previous release. Before upgrading, please either delete the resource from the cluster or remove it from the chart Error: UPGRADE FAILED: kind ConfigMap with the name "you-configmap-name" in "your-env" already exists in the cluster and wasn't defined in the previous release. Before upgrading, please either delete the resource from the cluster or remove it from the chart