parsing image name: invalid reference format

apiVersion: skaffold/v4beta11
kind: Config
metadata:
name: skaffold-python-app
build:
artifacts:
- image: skaffold-python-app
docker:
dockerfile: Dockerfile
tagPolicy:
customTemplate:
template: 'skaffold-python-app:latest' # 固定的 latest 标签
manifests:
rawYaml:
- k8s/deployment.yaml
- k8s/service.yaml

执行后依然提示 Executing custom template &{customTemplate 0xc000378ea0 0xc000152960 } with custom map map[] subtask=-1 task=DevLoop DEBU[0000] parsing image name: invalid reference format