A2A Agent 注册 Nacos 报错：errCode: 501, errMsg: Request Nacos server version is too low, not support agent registry feature.

[niceliangfan]

Nacos Server 已升级至 3.1.1 版本

项目依赖：

ext {
	set('springAiAlibabaVersion', '1.1.2.0')
	set('springAiAlibabaExtensionsVersion', '1.1.2.0')
}

dependencies {
	implementation 'com.alibaba.cloud.ai:spring-ai-alibaba-agent-framework'
	implementation 'com.alibaba.cloud.ai:spring-ai-alibaba-starter-dashscope'
        implementation 'com.alibaba.cloud.ai:spring-ai-alibaba-starter-a2a-nacos'
}

dependencyManagement {
	imports {
		mavenBom "com.alibaba.cloud.ai:spring-ai-alibaba-bom:${springAiAlibabaVersion}"
		mavenBom "com.alibaba.cloud.ai:spring-ai-alibaba-extensions-bom:${springAiAlibabaExtensionsVersion}"
	}
}

配置文件：

spring:
  ai:
    alibaba:
      a2a:
        nacos:
          server-addr: 127.0.0.1:8848
          username: nacos
          password: nacos
          registry:
            enabled: true
          discovery:
            enabled: true
        server:
          version: 1.0.0
          card:
            name: data_analysis_agent
            description: 专门用于数据分析和统计计算的本地智能体

A2A Agent 配置类：

@Configuration
public class A2AAgentConfig {

    @Bean("data_analysis_agent")
    public ReactAgent dataAnalysisAgent(ChatModel chatModel) {
        return ReactAgent.builder()
                .name("data_analysis_agent")
                .model(chatModel)
                .description("专门用于数据分析和统计计算的本地智能体")
                .instruction("你是一个专业的数据分析专家，擅长处理各类数据统计和分析任务。" +
                        "你能够理解用户的数据分析需求，提供准确的统计计算结果和专业的分析建议。")
                .enableLogging(true)
                .outputKey("messages")
                .build();
    }
}

项目启动后，报错如下：

2026-03-24T10:56:34.489+08:00 ERROR 11980 --- [ali-agent] [           main] c.a.c.a.a.c.r.AgentRegistryService       : Auto register agent data_analysis_agent into Registry Nacos[127.0.0.1:8848] failed.

com.alibaba.nacos.api.exception.runtime.NacosRuntimeException: errCode: 501, errMsg: Request Nacos server version is too low, not support agent registry feature. 
	at com.alibaba.nacos.client.ai.remote.AiGrpcClient.releaseAgentCard(AiGrpcClient.java:374) ~[nacos-client-3.1.0.jar:na]
	at com.alibaba.nacos.client.ai.NacosAiService.releaseAgentCard(NacosAiService.java:214) ~[nacos-client-3.1.0.jar:na]
	at com.alibaba.cloud.ai.a2a.registry.nacos.service.NacosA2aOperationService.tryReleaseAgentCard(NacosA2aOperationService.java:73) ~[spring-ai-alibaba-starter-a2a-nacos-1.1.2.0.jar:1.1.2.0]
	at com.alibaba.cloud.ai.a2a.registry.nacos.service.NacosA2aOperationService.registerAgent(NacosA2aOperationService.java:61) ~[spring-ai-alibaba-starter-a2a-nacos-1.1.2.0.jar:1.1.2.0]
	at com.alibaba.cloud.ai.a2a.registry.nacos.register.NacosAgentRegistry.register(NacosAgentRegistry.java:48) ~[spring-ai-alibaba-starter-a2a-nacos-1.1.2.0.jar:1.1.2.0]
	at com.alibaba.cloud.ai.a2a.core.registry.AgentRegistryService.register(AgentRegistryService.java:48) ~[spring-ai-alibaba-starter-a2a-nacos-1.1.2.0.jar:1.1.2.0]
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[na:na]
	at org.springframework.context.event.ApplicationListenerMethodAdapter.doInvoke(ApplicationListenerMethodAdapter.java:383) ~[spring-context-6.2.15.jar:6.2.15]
	at org.springframework.context.event.ApplicationListenerMethodAdapter.processEvent(ApplicationListenerMethodAdapter.java:255) ~[spring-context-6.2.15.jar:6.2.15]
	at org.springframework.context.event.ApplicationListenerMethodAdapter.onApplicationEvent(ApplicationListenerMethodAdapter.java:174) ~[spring-context-6.2.15.jar:6.2.15]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:185) ~[spring-context-6.2.15.jar:6.2.15]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:178) ~[spring-context-6.2.15.jar:6.2.15]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:156) ~[spring-context-6.2.15.jar:6.2.15]
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:454) ~[spring-context-6.2.15.jar:6.2.15]
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:387) ~[spring-context-6.2.15.jar:6.2.15]
	at org.springframework.boot.context.event.EventPublishingRunListener.ready(EventPublishingRunListener.java:109) ~[spring-boot-3.5.10.jar:3.5.10]
	at org.springframework.boot.SpringApplicationRunListeners.lambda$ready$6(SpringApplicationRunListeners.java:80) ~[spring-boot-3.5.10.jar:3.5.10]
	at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:118) ~[spring-boot-3.5.10.jar:3.5.10]
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:112) ~[spring-boot-3.5.10.jar:3.5.10]
	at org.springframework.boot.SpringApplicationRunListeners.ready(SpringApplicationRunListeners.java:80) ~[spring-boot-3.5.10.jar:3.5.10]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:332) ~[spring-boot-3.5.10.jar:3.5.10]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1361) ~[spring-boot-3.5.10.jar:3.5.10]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1350) ~[spring-boot-3.5.10.jar:3.5.10]
	at com.liangfan.aliagent.AliAgentApplication.main(AliAgentApplication.java:10) ~[main/:na]

[arvin-w2]

nacos新版本使用的是gRPC，需要放开8848，9848，9849端口