n8n-io/n8n · error · Error

No prompt rows found in the provided CSV file

Error message

No prompt rows found in the provided CSV file

What it means

Error "No prompt rows found in the provided CSV file" thrown in n8n-io/n8n.

Source

Thrown at packages/@n8n/ai-workflow-builder.ee/evaluations/cli/csv-prompt-loader.ts:60

export function loadTestCasesFromCsv(csvPath: string): TestCase[] {
	const resolvedPath = isAbsolute(csvPath) ? csvPath : resolve(process.cwd(), csvPath);

	if (!existsSync(resolvedPath)) {
		throw new Error(`CSV file not found at ${resolvedPath}`);
	}

	const rows = parseCsv(readFileSync(resolvedPath, 'utf8'));

	if (rows.length === 0) {
		throw new Error('The provided CSV file is empty');
	}

	const hasHeader = isHeaderRow(rows[0]);
	const header = hasHeader ? rows[0] : undefined;
	const dataRows = hasHeader ? rows.slice(1) : rows;

	if (dataRows.length === 0) {
		throw new Error('No prompt rows found in the provided CSV file');
	}

	// Find column index by name(s), returns undefined if no header
	const findColumn = (...names: string[]): number | undefined => {
		if (!header) return undefined;
		for (const name of names) {
			const idx = detectColumnIndex(header, name);
			if (idx !== undefined) return idx;
		}
		return undefined;
	};

	const promptIdx = findColumn('prompt') ?? 0;
	const idIdx = findColumn('id');
	const dosIdx = findColumn('dos', 'do');
	const dontsIdx = findColumn('donts', 'dont');
	const annotationsIdx = findColumn('annotations');

View on GitHub (pinned to 5ac6606e81)

When it happens

Trigger: Thrown at packages/@n8n/ai-workflow-builder.ee/evaluations/cli/csv-prompt-loader.ts:60 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of n8n-io/n8n@5ac6606e81 (2026-08-12). Data as JSON: /api/errors/1c697f6baadcd442. Report an issue: GitHub.