tigerleeli commented on issue #2712: spring-cloud-alibaba feign里面使用，这个是什么原因？是什么地方没有配置对吗 URL: https://github.com/apache/skywalking/issues/2712#issuecomment-493734917 > English only. From log, grpc connection can't be established. 我知道 grpc 没有建立连接，但是我想问为什么没有建立？可能的原因是什么
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