Kube-prometheus: RUNTIME ERROR: Field does not exist: groups

[Icedroid]

$jsonnet -J vendor -m manifests example.jsonnet
RUNTIME ERROR: Field does not exist: groups vendor/kube-prometheus/prometheus/prometheus.libsonnet:67:19-43 object <anonymous> During manifestation

[arianitu]

@Icedroid We're running into this when we copy and paste the configuration in the documentation, it seems to be when specifying rules: {} and if it's empty this error shows.

Example generating the error:

      prometheus+:: {
        names: 'k8s',
        replicas: 1,
        rules: {},              
      },

Example fix (remove empty rules):

      prometheus+:: {
        names: 'k8s',
        replicas: 1,         
      },