$ helm install nextflow-api helm/
Error: unable to build kubernetes objects from release manifest: error validating "": error validating data: [unknown object type "nil" in Deployment.metadata.labels.instance, unknown object type "nil" in Deployment.spec.selector.matchLabels.instance, unknown object type "nil" in Deployment.spec.template.metadata.labels.instance]
Helm 3.1.0 does not work with the error:
Helm v3.0.0-beta.3 works fine.
Will fix incompatibility ASAP.