net::ERR_NAME_NOT_RESOLVED

[taotaoyuhust]

when i run the code, it reports an error at downloadModel

i use this:
import * as tflayer from '@tensorflow/tfjs-layers';

export async function downloadModel(url = DEFAULT_MODEL_LOCATION) {
return await tflayer.loadLayersModel(url);
}
err:
VM16 asdebug.js:1 GET https://raw.githubusercontent.com/MikeShi42/yolo-tiny-tfjs/master/model2.json net::ERR_NAME_NOT_RESOLVED

what's wrong? 3x