包版本：

• org.springframework.cloud:spring-cloud-loadbalancer:3.0.0
• com.alibaba.cloud:spring-cloud-starter-alibaba-seata:2021.1
• io.seata:seata-spring-boot-starter:1.3.0

大的软件版本：

Gradle 6.3
SpringCloud 2020.0.0
SpringCloudAlibaba 2021.1
SpringBoot 2.4.2
seata 1.3.0
sentinel 1.8.0
nacos 1.4.1

找到缓存类，全部报找不到那个类

报错全部信息

2021-06-23 11:38:25.594  WARN 10484 --- [           main] com.alibaba.nacos.client.naming          : [NamingHttpClientManager] Start destroying NacosRestTemplate
2021-06-23 11:38:25.594  WARN 10484 --- [           main] com.alibaba.nacos.client.naming          : [NamingHttpClientManager] Destruction of the end
2021-06-23 11:38:25.595  INFO 10484 --- [           main] c.a.n.client.identify.CredentialWatcher  : [null] CredentialWatcher is stopped
2021-06-23 11:38:25.595  INFO 10484 --- [           main] c.a.n.client.identify.CredentialService  : [null] CredentialService is freed
2021-06-23 11:38:25.595  INFO 10484 --- [           main] com.alibaba.nacos.client.naming          : com.alibaba.nacos.client.naming.net.NamingProxy do shutdown stop
2021-06-23 11:38:25.601  INFO 10484 --- [           main] o.s.s.c.ThreadPoolTaskScheduler          : Shutting down ExecutorService 'taskScheduler'
2021-06-23 11:38:25.605  INFO 10484 --- [           main] com.alibaba.druid.pool.DruidDataSource   : {dataSource-1} closed
2021-06-23 11:38:25.608  INFO 10484 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2021-06-23 11:38:25.622  INFO 10484 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-06-23 11:38:25.647 ERROR 10484 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'caffeineLoadBalancerCacheManager' defined in class path resource [org/springframework/cloud/loadbalancer/config/LoadBalancerCacheAutoConfiguration$CaffeineLoadBalancerCacheManagerConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.loadbalancer.cache.LoadBalancerCacheManager]: Factory method 'caffeineLoadBalancerCacheManager' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/cache/caffeine/CaffeineCacheManager
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1179) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:571) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:923) ~[spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.3.jar:5.3.3]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) [spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) [spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) [spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) [spring-boot-2.4.2.jar:2.4.2]
	at com.cc.ConsumerOrderMain82.main(ConsumerOrderMain82.java:22) [main/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.loadbalancer.cache.LoadBalancerCacheManager]: Factory method 'caffeineLoadBalancerCacheManager' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/cache/caffeine/CaffeineCacheManager
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.3.3.jar:5.3.3]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.3.jar:5.3.3]
	... 20 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/cache/caffeine/CaffeineCacheManager
	at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_111]
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_111]
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_111]
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[na:1.8.0_111]
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[na:1.8.0_111]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[na:1.8.0_111]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[na:1.8.0_111]
	at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_111]
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[na:1.8.0_111]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_111]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_111]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_111]
	at org.springframework.cloud.loadbalancer.config.LoadBalancerCacheAutoConfiguration$CaffeineLoadBalancerCacheManagerConfiguration.caffeineLoadBalancerCacheManager(LoadBalancerCacheAutoConfiguration.java:93) ~[spring-cloud-loadbalancer-3.0.0.jar:3.0.0]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_111]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_111]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_111]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.3.jar:5.3.3]
	... 21 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.cache.caffeine.CaffeineCacheManager
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_111]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_111]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_111]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_111]
	... 39 common frames omitted

2021-06-23 11:38:25.649  WARN 10484 --- [      Thread-28] c.a.nacos.common.notify.NotifyCenter     : [NotifyCenter] Start destroying Publisher
2021-06-23 11:38:25.649  WARN 10484 --- [       Thread-6] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Start destroying common HttpClient
2021-06-23 11:38:25.649  WARN 10484 --- [      Thread-28] c.a.nacos.common.notify.NotifyCenter     : [NotifyCenter] Destruction of the end
2021-06-23 11:38:25.649  WARN 10484 --- [       Thread-6] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Destruction of the end
Disconnected from the target VM, address: '127.0.0.1:65251', transport: 'socket'

Process finished with exit code 1

源码地址：https://gitee.com/KakarottoSon/spring-cloud2021-erro

源码地址：https://gitee.com/KakarottoSon/spring-cloud2021-erro

启动：8001，即可看到错误