報錯如下：

com.alibaba.nacos.api.exception.NacosException: Request nacos server failed: 
	at com.alibaba.nacos.client.naming.remote.gprc.NamingGrpcClientProxy.requestToServer(NamingGrpcClientProxy.java:290)
	at com.alibaba.nacos.client.naming.remote.gprc.NamingGrpcClientProxy.doSubscribe(NamingGrpcClientProxy.java:230)
	at com.alibaba.nacos.client.naming.remote.gprc.NamingGrpcClientProxy.subscribe(NamingGrpcClientProxy.java:215)
	at com.alibaba.nacos.client.naming.remote.NamingClientProxyDelegate.subscribe(NamingClientProxyDelegate.java:147)
	at com.alibaba.nacos.client.naming.NacosNamingService.subscribe(NacosNamingService.java:393)
	at com.alibaba.cloud.nacos.discovery.NacosWatch.start(NacosWatch.java:132)
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178)
	at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54)
	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155)
	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123)
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295)
	at com.sznong.XxServerApplication.main(XxServerApplication.java:14)

nacos maven 版本如下：

dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-alibaba-dependencies</artifactId>
    <version>2021.0.4.0</version>
    <type>pom</type>
    <scope>import</scope>
</dependency>

nacos 客戶端版本：

2.1.2

?原因分析：

客戶端可引用的版本不一致導(dǎo)致！文章來源地址http://www.zghlxwxcb.cn/news/detail-537348.html

解決：

將客戶端的版本升級

<dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>com.alibaba.nacos</groupId>
                    <artifactId>nacos-client</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
<dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
            <version>2.1.2</version>
        </dependency>

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