Grafana Loki + Promtail failed to build query 'A': data source not found

Grafana Loki
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1

Hi I’ve configured promtail and loki on my machines, the data source seems fine as after testing it says Data source connected and labels found.

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However, when i check the log of loki everything shows 1 error like shown in the pic:
failed to build query ‘A’: data source not found

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May i ask what is the issue and how to fix this?

2

  1. Are you sure you are looking at the right data source for Loki?

  2. Looks like you may have a misconfigured grafana alerting rules somewhere.