●Change8
Error2 reports

Fix EnvSubstitutionError

in OpenTelemetry Python

✅ Solution

This error typically occurs in opentelemetry-python. Check the example issues for common solutions.

Related Issues

Real GitHub issues where developers encountered this error:

Declarative configuration: environment variable substitution runs on raw file text before parsing, so YAML comments crash the configuratorJul 10, 2026
Declarative config env substitution rejects unset variables without defaultsJul 10, 2026

Timeline

First reported:Jul 10, 2026
Last reported:Jul 10, 2026

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