服务注册与发现由eureka切换为nacos，springboot启动报错

错误日志如下：

2021-05-11 17:17:19.435 [restartedMain] ERROR org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter - 

***************************
APPLICATION FAILED TO START
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Description:

Field registration in org.springframework.cloud.client.serviceregistry.ServiceRegistryAutoConfiguration$ServiceRegistryEndpointConfiguration required a single bean, but 2 were found:
	- nacosRegistration: defined by method 'nacosRegistration' in class path resource [com/alibaba/cloud/nacos/registry/NacosServiceRegistryAutoConfiguration.class]
	- eurekaRegistration: defined in BeanDefinition defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.class]


Action:

Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed

检查pom.xml 中 是否同时引入eureka与nacos的服务注册包（ spring-cloud-starter-alibaba-nacos-discovery与spring-cloud-starter-netflix-eureka-client）

<dependencies>
	<dependency>
	    <groupId>com.alibaba.cloud</groupId>
	    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
	    <version>${spring-cloud-alibaba.version}</version>
	</dependency>
	
	<dependency>
	    <groupId>org.springframework.cloud</groupId>
	    <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
	</dependency>
</dependencies>

如果为上述情况，去除eureka依赖包即可

<dependencies>
	<dependency>
	    <groupId>com.alibaba.cloud</groupId>
	    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
	    <version>${spring-cloud-alibaba.version}</version>
	</dependency>
</dependencies>