microsoft/vscode · error · Error

Unable to render QR code.

Error message

Unable to render QR code.

What it means

Error "Unable to render QR code." thrown in microsoft/vscode.

Source

Thrown at extensions/copilot/src/extension/chatSessions/copilotcli/node/copilotcliSession.ts:805

						continue;
					}
					const bit = bitIndex < codewordBits.length ? codewordBits[bitIndex++] : false;
					modules[y][x] = bit !== getQrMask(mask, x, y);
				}
			}
			upward = !upward;
		}

		setQrFormatInfo(modules, mask);
		const penalty = getQrPenalty(modules);
		if (penalty < bestPenalty) {
			bestPenalty = penalty;
			bestModules = modules;
		}
	}

	if (!bestModules) {
		throw new Error('Unable to render QR code.');
	}
	return bestModules;
}

async function renderRemoteControlQrCode(data: string): Promise<string> {
	const modules = buildQrMatrix(data);
	const imageSize = (qrSize + qrQuietZoneModules * 2) * qrSvgModuleSize;
	const path = modules.flatMap((row, y) => row.map((dark, x) => {
		if (!dark) {
			return '';
		}
		const moduleX = (x + qrQuietZoneModules) * qrSvgModuleSize;
		const moduleY = (y + qrQuietZoneModules) * qrSvgModuleSize;
		return `M${moduleX} ${moduleY}h${qrSvgModuleSize}v${qrSvgModuleSize}h-${qrSvgModuleSize}z`;
	})).join('');
	const svg = `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 ${imageSize} ${imageSize}" width="${imageSize}" height="${imageSize}"><path fill="#fff" d="M0 0h${imageSize}v${imageSize}H0z"/><path fill="#000" d="${path}"/></svg>`;
	return `data:image/svg+xml;base64,${Buffer.from(svg).toString('base64')}`;
}

View on GitHub (pinned to a94b963a32)

When it happens

Trigger: Thrown at extensions/copilot/src/extension/chatSessions/copilotcli/node/copilotcliSession.ts:805 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of microsoft/vscode@a94b963a32 (2026-08-12). Data as JSON: /api/errors/63fb993f695726bc. Report an issue: GitHub.