GoogleContainerTools/skaffold · error

marshalling configuration: %w

Error message

marshalling configuration: %w

What it means

The jobManifestPaths `Modify` command loads skaffold configs, modifies jobManifestPaths entries, and re-serializes them with yaml.MarshalWithSeparator to write to stdout. If marshaling fails, "marshalling configuration: %w" is returned. The command produced no output and the underlying marshal error is preserved.

Source

Thrown at pkg/skaffold/inspect/jobManifestPaths/modify.go:95

			if jobManifestPath, ok := result.VerifyJobManifestPaths[configs[i].(*latest.SkaffoldConfig).Verify[j].Name]; ok {
				configs[i].(*latest.SkaffoldConfig).Verify[j].ExecutionMode.KubernetesClusterExecutionMode.JobManifestPath = jobManifestPath
			}
		}

		for j := range configs[i].(*latest.SkaffoldConfig).CustomActions {
			if jobManifestPath, found := result.CustomActionJobManifestPaths[configs[i].(*latest.SkaffoldConfig).CustomActions[j].Name]; found {
				if configs[i].(*latest.SkaffoldConfig).CustomActions[j].ExecutionModeConfig.KubernetesClusterExecutionMode == nil {
					configs[i].(*latest.SkaffoldConfig).CustomActions[j].ExecutionModeConfig.KubernetesClusterExecutionMode = &latest.KubernetesClusterVerifier{}
				}

				configs[i].(*latest.SkaffoldConfig).CustomActions[j].ExecutionModeConfig.KubernetesClusterExecutionMode.JobManifestPath = jobManifestPath
			}
		}
	}

	buf, err := yaml.MarshalWithSeparator(configs)
	if err != nil {
		return fmt.Errorf("marshalling configuration: %w", err)
	}
	out.Write(buf)

	return nil
}

View on GitHub (pinned to a1189de023)

Solutions

1. Check the wrapped error to find the offending config field and correct skaffold.yaml.
2. Ensure the file's apiVersion matches a version supported by your skaffold CLI.
3. Use a matching skaffold version for the config schema you're editing.

if err := modifyJobManifestPaths(opts, out); err != nil {
    if strings.Contains(err.Error(), "marshalling configuration") {
        // configs were modified in memory but could not be serialized; report and exit
    }
}

When it happens

Trigger: Running `skaffold inspect job-manifest-paths modify` when the resulting config structs cannot be marshaled (unsupported values, nil required fields).

Common situations: Schema mismatch between the skaffold.yaml version and the CLI's config structs; modifying configs with values the marshaller can't encode.

Related errors

• marshaling new configs: %w
• invalid local-registry-hosting ConfigMap
• CONFIG_ZERO_FOUND_ERR
• CONFIG_DUPLICATE_NAMES_SAME_FILE_ERR
• missing apiVersion

AI-assisted analysis of GoogleContainerTools/skaffold@a1189de023 (2026-09-05). Data as JSON: /api/errors/8099eb2bee4f566a. Report an issue: GitHub.