Failed to send heartbeat: 502: Instance resource not found (Instance resource not found when sending heartbeat) [0]

[kql250520]

eureka-server is v2.2.0 but can't register; eureka-server portal can't found it;

code: client := eureka.NewClient([]string{ "http://10.181.12.116:8761/eureka", //From a spring boot based eureka server // add others servers here }) instance := eureka.NewInstanceInfo("test.com", "test", "69.172.200.235", 80, 30, false) //Create a new instance to register instance.Metadata = &eureka.MetaData{ Map: make(map[string]string), } instance.Metadata.Map["foo"] = "bar" //add metadata for example client.RegisterInstance("myapp", instance) // Register new instance in your eureka(s) //applications, _ := client.GetApplications() // Retrieves all applications from eureka server(s) client.GetApplication(instance.App) // retrieve the application "test" client.GetInstance(instance.App, instance.HostName) // retrieve the instance from "test.com" inside "test"" app client.SendHeartbeat(instance.App, instance.HostName) // say to eureka that your app is alive (here you must send heartbeat before 30 sec)