earendil-works/pi · error · CborError

CBOR arrays must not contain holes or undefined values

Error message

CBOR arrays must not contain holes or undefined values

What it means

Error "CBOR arrays must not contain holes or undefined values" thrown in earendil-works/pi.

Source

Thrown at packages/protocol/src/cbor/encoder.ts:170

	if (value instanceof Uint8Array) {
		if (value.byteLength > options.maxByteLength) {
			throw new CborError(`CBOR byte string length exceeds configured limit of ${options.maxByteLength}`);
		}
		writeArgument(writer, 2, value.byteLength);
		writer.writeBytes(value);
		return;
	}
	if (Array.isArray(value)) {
		if (ancestors.has(value)) throw new CborError("CBOR values must not contain cycles");
		if (value.length > options.maxContainerLength) {
			throw new CborError(`CBOR array length exceeds configured limit of ${options.maxContainerLength}`);
		}
		ancestors.add(value);
		try {
			writeArgument(writer, 4, value.length);
			for (let index = 0; index < value.length; index++) {
				if (!Object.hasOwn(value, index) || value[index] === undefined) {
					throw new CborError("CBOR arrays must not contain holes or undefined values");
				}
				encodeValue(writer, value[index], options, depth + 1, ancestors);
			}
		} finally {
			ancestors.delete(value);
		}
		return;
	}
	if (isPlainObject(value)) {
		if (ancestors.has(value)) throw new CborError("CBOR values must not contain cycles");
		for (const symbol of Object.getOwnPropertySymbols(value)) {
			if (Object.prototype.propertyIsEnumerable.call(value, symbol)) {
				throw new CborError("CBOR map keys must be strings");
			}
		}
		const entries: Array<readonly [string, unknown]> = [];
		for (const key of Object.keys(value)) {
			const entryValue = value[key];

View on GitHub (pinned to 4af9d21d3b)

Solutions

1. Replace undefined values and array holes with null before encoding.

When it happens

Trigger: Thrown at packages/protocol/src/cbor/encoder.ts:170 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of earendil-works/pi@4af9d21d3b (2026-08-24). Data as JSON: /api/errors/6daae6a6c5c12754. Report an issue: GitHub.