Class: EngineRequiredError

PrinterAdapter.print() was called on a multi-engine device whose protocol does not support firmware-side auto-routing, without an explicit engine in PrintOptions.

Thrown by drivers when options.engine is omitted on devices like the LabelWriter Duo where the host has to pick a target engine up-front. The list of valid roles is included so the caller can surface a useful UX message.

Extends

• Error

Constructors

Constructor

new EngineRequiredError(availableEngines: readonly string[]): EngineRequiredError;

Parameters

Parameter	Type
availableEngines	readonly string[]

Returns

EngineRequiredError

Overrides

Error.constructor

Properties

availableEngines

readonly availableEngines: readonly string[];

Available engine roles on the connected device.

---

cause?

optional cause?: unknown;

Inherited from

Error.cause

---

message

message: string;

Inherited from

Error.message

---

name

name: string;

Inherited from

Error.name

---

stack?

optional stack?: string;

Inherited from

Error.stack