collector not starting when putting vcenter receiver

[dimitrisfinas]

hi all,
I downloaded v0.56 of the opentelemetry collector contrib (centos rpm package) normally containing vcenter receiver.
As soon as I add the vcenter receiver, collector doesn't start, even if vcenter is not in any pipeline.
If I put "vcenter" in comment, then collector starts again.

I can't see any no error in log:

Jul 22 13:18:18 instance-1 systemd[1]: Started OpenTelemetry Collector Contrib.
Jul 22 13:18:18 instance-1 otelcol-contrib[2663]: 2022/07/22 13:18:18 proto: duplicate proto type registered: jaeger.api_v2.PostSpansRequest
Jul 22 13:18:18 instance-1 otelcol-contrib[2663]: 2022/07/22 13:18:18 proto: duplicate proto type registered: jaeger.api_v2.PostSpansResponse
Jul 22 13:18:18 instance-1 systemd[1]: otelcol-contrib.service: main process exited, code=exited, status=1/FAILURE
Jul 22 13:18:18 instance-1 systemd[1]: Unit otelcol-contrib.service entered failed state.
Jul 22 13:18:18 instance-1 systemd[1]: otelcol-contrib.service failed.
Jul 22 13:18:18 instance-1 systemd[1]: otelcol-contrib.service holdoff time over, scheduling restart.
Jul 22 13:18:18 instance-1 systemd[1]: Stopped OpenTelemetry Collector Contrib.
.... systemd[1]: Failed to start OpenTelemetry Collector Contrib.

My config.yaml file (vcenter receiver is not even activated in any pipeline):

extensions:
  health_check:
  pprof:
    endpoint: 0.0.0.0:1777
  zpages:
    endpoint: 0.0.0.0:55679

receivers:
  otlp:
    protocols:
      grpc:
      http:

  vcenter:
    endpoint: http://localhost:15672
    username: otelu
    password: $VCENTER_PASSWORD
    collection_interval: 5m
    metrics: []

processors:
  batch:

exporters:
  logging:
    logLevel: debug

service:
  telemetry:
    logs:
      level: "debug"

  pipelines:

    traces:
      receivers: [otlp]
      processors: [batch]
      exporters: [logging]

    metrics:
      receivers: [otlp]
      processors: [batch]
      exporters: [logging]

  extensions: [health_check, pprof, zpages]

[dimitrisfinas]

Answered in #12177