Existing resource conflict: kind: NetworkPolicy, namespace: default, name: singleuser

JupyterHub Zero to JupyterHub on Kubernetes
1

getting this error when setting networkPolicy under singleuser to be ‘enabled: true’

running installation : helm upgrade --install --debug --force name helm_chart_path --values config.yaml

full error output :

Error: rendered manifests contain a resource that already exists. Unable to continue with install: existing resource conflict: kind: NetworkPolicy, namespace: default, name: singleuser
helm.go:76: [debug] existing resource conflict: kind: NetworkPolicy, namespace: default, name: singleuser
rendered manifests contain a resource that already exists. Unable to continue with install
helm.sh/helm/v3/pkg/action.(*Install).Run
	/home/circleci/helm.sh/helm/pkg/action/install.go:242
main.runInstall
	/home/circleci/helm.sh/helm/cmd/helm/install.go:214
main.newUpgradeCmd.func1
	/home/circleci/helm.sh/helm/cmd/helm/upgrade.go:111
github.com/spf13/cobra.(*Command).execute
	/go/pkg/mod/github.com/spf13/cobra@v0.0.5/command.go:826
github.com/spf13/cobra.(*Command).ExecuteC
	/go/pkg/mod/github.com/spf13/cobra@v0.0.5/command.go:914
github.com/spf13/cobra.(*Command).Execute
	/go/pkg/mod/github.com/spf13/cobra@v0.0.5/command.go:864
main.main
	/home/circleci/helm.sh/helm/cmd/helm/helm.go:75
runtime.main
	/usr/local/go/src/runtime/proc.go:203
runtime.goexit
	/usr/local/go/src/runtime/asm_amd64.s:1357