| 2020-05-20 14:59:12.705 ERROR[main]io.seata.server.Server.main:95 -rpcServer init error:ErrCode:500, ErrMsg:failed to req API:/api//nacos/v1/ns/instance after all servers([nacos]) tried: java.net.ConnectException: Connection refused (Connection refused)
seata-server_1  | java.lang.RuntimeException: ErrCode:500, ErrMsg:failed to req API:/api//nacos/v1/ns/instance after all servers([nacos]) tried: java.net.ConnectException: Connection refused (Connection refused)
seata-server_1  |       at io.seata.core.rpc.netty.RpcServerBootstrap.start(RpcServerBootstrap.java:160)
seata-server_1  |       at io.seata.core.rpc.netty.AbstractRpcRemotingServer.init(AbstractRpcRemotingServer.java:140)
seata-server_1  |       at io.seata.core.rpc.netty.RpcServer.init(RpcServer.java:59)
seata-server_1  |       at io.seata.server.Server.main(Server.java:93)
seata-server_1  | Caused by: com.alibaba.nacos.api.exception.NacosException: failed to req API:/api//nacos/v1/ns/instance after all servers([nacos]) tried: java.net.ConnectException: Connection refused (Connection refused)
seata-server_1  |       at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:490)
seata-server_1  |       at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:395)
seata-server_1  |       at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:391)
seata-server_1  |       at com.alibaba.nacos.client.naming.net.NamingProxy.registerService(NamingProxy.java:210)
seata-server_1  |       at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:207)
seata-server_1  |       at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:182)
seata-server_1  |       at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:170)
seata-server_1  |       at io.seata.discovery.registry.nacos.NacosRegistryServiceImpl.register(NacosRegistryServiceImpl.java:84)
seata-server_1  |       at io.seata.core.rpc.netty.RpcServerBootstrap.start(RpcServerBootstrap.java:156)
seata-server_1  |       ...