ERR_UNHANDLED_ERROR
发生未处理的错误（例如，当 EventEmitter 触发 'error' 事件但未注册 'error' 句柄时）。
An unhandled error occurred (for instance, when an 'error' event is emitted
by an EventEmitter but an 'error' handler is not registered).
发生未处理的错误（例如，当 EventEmitter 触发 'error' 事件但未注册 'error' 句柄时）。
An unhandled error occurred (for instance, when an 'error' event is emitted
by an EventEmitter but an 'error' handler is not registered).