Thrown "KeeperErrorCode = Unimplemented for /services" exception

1.环境

spring-boot 2.1.3 依赖项：spring-cloud-starter-zookeeper-discovery 版本2.1.1

使用的zookeeper3.4.11

代码如下：

package com.example.demo;

import java.net.InetAddress;
import java.net.UnknownHostException;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

@Configuration
@EnableAutoConfiguration
@EnableDiscoveryClient
@RestController
public class ZkDiscoveryApplication {

    @RequestMapping("/")
    @ResponseBody
    String home() {
        String message = "Hello World from Greeting Microservice located at %s!";
        try {
            String address = InetAddress.getLocalHost().getHostAddress();
            message = String.format(message, address);
        } catch (UnknownHostException e) {
            message = String.format(message, "Unknown Host");
        }

        return message;

    }

2.启动spring boot项目报错

Thrown "KeeperErrorCode = Unimplemented for /services" exception

3.原因

Curator 和zookeeper的版本不一致

4.解决方式

zookeeper升级到最新的5.x后异常消失