n8n-io/n8n · error · Error

Missing value for --test-case-path

Error message

Missing value for --test-case-path

What it means

Thrown by `parseCliArgs()` in export-latest-verifier-request.ts when `--test-case-path` is the last token (the `argv[++i]` lookup returned undefined). `--test-case-path` takes an explicit filesystem path (resolved via `path.resolve(process.cwd(), rawPath)`) — unlike `--slug` which joins to a known data dir. Use this when the case file lives outside `evaluations/data/workflows/`.

Source

Thrown at packages/@n8n/instance-ai/evaluations/export-latest-verifier-request.ts:101

	for (let i = 0; i < argv.length; i++) {
		const arg = argv[i];
		switch (arg) {
			case '--test-case':
			case '--slug': {
				const slug = argv[++i];
				if (!slug) throw new Error(`Missing value for ${arg}`);
				testCasePath = path.join(
					instanceAiRoot,
					'evaluations',
					'data',
					'workflows',
					`${slug}.json`,
				);
				break;
			}
			case '--test-case-path': {
				const rawPath = argv[++i];
				if (!rawPath) throw new Error('Missing value for --test-case-path');
				testCasePath = path.resolve(process.cwd(), rawPath);
				break;
			}
			case '--scenario': {
				scenarioName = argv[++i];
				if (!scenarioName) throw new Error('Missing value for --scenario');
				break;
			}
			default:
				if (arg.startsWith('--')) throw new Error(`Unknown flag: ${arg}`);
				if (!scenarioName) {
					scenarioName = arg;
				} else if (!testCasePath) {
					testCasePath = path.join(
						instanceAiRoot,
						'evaluations',
						'data',
						'workflows',

View on GitHub (pinned to 5ac6606e81)

Solutions

1. Supply the path: `--test-case-path /abs/path/to/case.json` (or a path relative to cwd).
2. If the file is in the standard workflows dir, prefer `--slug <name>` instead.
3. Confirm the file exists at the resolved path before re-running.

Example fix

// before
$ node export-latest-verifier-request.ts --test-case-path
// after
$ node export-latest-verifier-request.ts --test-case-path /tmp/my-case.json

// Reuse the same checkMissingValues helper from error 436 — it already covers --test-case-path.
const missing = checkMissingValues(process.argv.slice(2));
if (missing.length) throw new Error(`Missing values for: ${missing.join(', ')}`);

When it happens

Trigger: `--test-case-path` as the last token. A shell-interpolated `${PATH_TO_CASE}` that resolved to empty (note: env var named like PATH can shadow — pick a clearer name). The flag was included by a script template that didn't fill in the value.

Common situations: Pointing at a case file under development in a scratch directory. CI passing an absolute path that wasn't substituted in.

Related errors

• Missing value for ${arg}
• Missing value for --scenario
• Unknown flag: ${arg}
• Unknown flag: ${arg.split('=', 1)[0]}
• Unexpected positional argument

AI-assisted analysis of n8n-io/n8n@5ac6606e81 (2026-08-12). Data as JSON: /api/errors/997444e10cbecd38. Report an issue: GitHub.