# ECS - error: port is missing

**URL:** <https://community.traefik.io/t/ecs-error-port-is-missing/13617>\
**Category:** Traefik v2\
**Tags:** ecs\
**Created:** [February 28, 2022, 2:53pm UTC](https://community.traefik.io/t/ecs-error-port-is-missing/13617 "2022-02-28T14:53:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![edzeknol](https://avatars.discourse-cdn.com/v4/letter/e/8e7dd6/32.png) [@edzeknol](https://community.traefik.io/u/edzeknol)\
**Post date:** [February 28, 2022, 2:53pm UTC](https://community.traefik.io/t/ecs-error-port-is-missing/13617/1 "2022-02-28T14:53:45Z")

</div>

Hello,

I am in the middle of migrating from V1 to V2. Everything seems to work, but I keep getting the following error that I can not explain:

```auto
time="2022-02-28T14:40:42Z" level=error msg="service \"service-echo-request-echo\" error: port is missing" ecs-instance=service-echo-request-echo-1ee54096be4d providerName=ecs

```

This error seems to come from the traefik instance and is thrown aprox every 30sec. Does anyone have any idea what is causing this?