问题
上传Android的Instant app时报错：
Your site 'xxxxx.com' has not been linked through the Digital Assets Link protocol to your app. Please link your site through the Digital Assets Link protocol to your app.
解决
1、检查网络，外网访问https://xxxx.com/.well-known/assetlinks.json是否能访问到。
2、生成assetlinks.json文件可能使用的是debug key，改为release key即可。