ory/kratos · error

unable to close message file at

Error message

unable to close message file at %s

What it means

The message file was opened successfully but closing it returned an error. This is a wrapped f.Close failure, typically caused by buffered writes failing to flush to disk (ENOSPC, I/O error) rather than a problem with the file's content.

Solutions

1. Check disk space and filesystem health on the target volume
2. Re-run the generation after fixing the underlying I/O problem
3. Verify no other process is holding or locking the file

When it happens

Trigger: Thrown at cmd/clidoc/main.go:423 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ory/kratos@b86338da04 (2026-09-07). Data as JSON: /api/errors/fda4fae39e67098b. Report an issue: GitHub.

Appendix: source

Thrown at cmd/clidoc/main.go:423

		return usedIDs[i].ID < usedIDs[j].ID
	})
	for i := 1; i < len(usedIDs); i++ {
		if usedIDs[i].ID == usedIDs[i-1].ID {
			return errors.Errorf("message ID %s is used more than once: %s %s", usedIDs[i].ID, usedIDs[i].Name, usedIDs[i-1].Name)
		}
	}

	return nil
}

func generateElements(messageFilePath string) error {
	// If the file at messageFilePath does not exist, create it
	f, err := os.OpenFile(messageFilePath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644) // #nosec
	if err != nil {
		return errors.Wrapf(err, "unable to open or create message file at %s", messageFilePath)
	}
	if err := f.Close(); err != nil {
		return errors.Wrapf(err, "unable to close message file at %s", messageFilePath)
	}

	sortedMessages := sortMessages()
	if err := writeMessagesJson(messageFilePath, sortedMessages); err != nil {
		return errors.Wrapf(err, "unable to write messages json to %s", messageFilePath)
	}
	return nil
}

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