ZLBer

@LaurenceLiZhixin @AlexStocks pls review this pr, tks.

how to fix this check error？ 

@LaurenceLiZhixin fixed.

why can not find this package? 

@thehackercat this doc has a example for how to use this：https://github.com/dubbogo/dubbogo.github.io/blob/master/docs/zh-cn/user/tasks/mesh/dubbogo_certificate_using_istio.md but at this stage, this func is not well integrated with dubbo-go, we need to obtain the certificate using...

@thehackercat issue fixed, thanks for your review. Next i think we can inject certificate when user use xds. but, the tls of dubbo-go is not very convenient. i think i...

@thehackercat sure, will add an example on [dubbo-go-samples](https://github.com/apache/dubbo-go-samples)

@justxuewei all fixed, thanks

这个是由于去配置中心拿这个默认配置(`dubbo.io.configurators`)的时候，naocs-sdk找不到会报错输出到控制台，zk之类找不到的不会输出错误。nacos-sdk之后会改成默认不输出日志到控制台，会单独打印到自己的日志文件。

@georgehao like this？ https://github.com/apache/dubbo-go/pull/2014