SpringCloud and nacos integrated error:-CodePudding

Java. Lang. IllegalArgumentException: no server available
The at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI (NamingProxy. Java: 354) ~ [nacos - the client - 1.0.0. Jar: na]
The at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI (NamingProxy. Java: 346) ~ [nacos - the client - 1.0.0. Jar: na]
The at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI (NamingProxy. Java: 294) ~ [nacos - the client - 1.0.0. Jar: na]
The at com.alibaba.nacos.client.naming.net.NamingProxy.getServiceList (NamingProxy. Java: 276) ~ [nacos - the client - 1.0.0. Jar: na]
The at com.alibaba.nacos.client.naming.net.NamingProxy.getServiceList (NamingProxy. Java: 252) ~ [nacos - the client - 1.0.0. Jar: na]
At com. Alibaba. Nacos. Client. Naming. NacosNamingService. GetServicesOfServer (NacosNamingService. Java: 525) ~ [nacos - the client - 1.0.0. Jar: na]
The at org. Springframework. Cloud. Alibaba. Nacos. Discovery. NacosWatch. NacosServicesWatch (NacosWatch. Java: 127) ~ [spring - the cloud - alibaba - nacos - discovery - 0.2.2. The jar: 0.2.2. RELEASE]
The at org. Springframework. Scheduling. Support. DelegatingErrorHandlingRunnable. Run (DelegatingErrorHandlingRunnable. Java: 54) ~ [spring - the context - 5.1.8. The jar: 5.1.8. RELEASE]
The at Java. Util. Concurrent. Executors $RunnableAdapter. Call (511) Executors. Java: ~ [na: 1.8.0 comes with _191]
The at Java. Util. Concurrent. FutureTask. RunAndReset $$$capture (FutureTask. Java: 308) ~ [na: 1.8.0 comes with _191]
The at Java. Util. Concurrent. FutureTask. RunAndReset (FutureTask. Java) ~ [na: 1.8.0 comes with _191]
The at Java. Util. Concurrent. ScheduledThreadPoolExecutor $ScheduledFutureTask. Access the $301 (180) ScheduledThreadPoolExecutor. Java: ~ [na: 1.8.0 comes with _191]
The at Java. Util. Concurrent. ScheduledThreadPoolExecutor $ScheduledFutureTask. Run (ScheduledThreadPoolExecutor. Java: 294) ~ [na: 1.8.0 comes with _191]
The at Java. Util. Concurrent. ThreadPoolExecutor. RunWorker (ThreadPoolExecutor. Java: 1149) ~ [na: 1.8.0 comes with _191]
The at Java. Util. Concurrent. ThreadPoolExecutor $Worker. The run (ThreadPoolExecutor. Java: 624) ~ [na: 1.8.0 comes with _191]
The at Java. Lang. Thread. The run (Thread. Java: 748) ~ [na: 1.8.0 comes with _191]