# Error getting a list of external metrics: status code 502 (text/html).

**URL:** <https://forums.percona.com/t/error-getting-a-list-of-external-metrics-status-code-502-text-html/6472>\
**Category:** PMM 1.x\
**Created:** [July 23, 2018, 2:34pm UTC](https://forums.percona.com/t/error-getting-a-list-of-external-metrics-status-code-502-text-html/6472 "2018-07-23T14:34:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![fritchie](https://avatars.discourse-cdn.com/v4/letter/f/3bc359/32.png) [@fritchie](https://forums.percona.com/u/fritchie)\
**Post date:** [July 23, 2018, 2:34pm UTC](https://forums.percona.com/t/error-getting-a-list-of-external-metrics-status-code-502-text-html/6472/1 "2018-07-23T14:34:18Z")

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Hi all,

I am running PMM version 1.12 on both server and client. When I run “pmm-admin list” I see this message:

Error getting a list of external metrics: status code 502 (text/html).  
Please check versions of your PMM Server and PMM Client.

What does this mean?

thx