Specific error information:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'feignTargeter' defined in class path resource [org/springframework/cloud/openfeign/FeignAutoConfiguration$DefaultFeignTargeterConfiguration.class]: Initialization of bean failed; nested exception is java.lang.IllegalAccessError: class org.springframework.cloud.openfeign.$Proxy207 cannot access its superinterface org.springframework.cloud.openfeign.Targeter
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)
	at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$148/267257399.getObject(Unknown Source)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:405)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
	at com.ruoyi.RuoYiApplication.main(RuoYiApplication.java:21)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: java.lang.IllegalAccessError: class org.springframework.cloud.openfeign.$Proxy207 cannot access its superinterface org.springframework.cloud.openfeign.Targeter
	at java.lang.reflect.Proxy.defineClass0(Native Method)
	at java.lang.reflect.Proxy.access$300(Proxy.java:228)
	at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:642)
	at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:557)
	at java.lang.reflect.WeakCache$Factory.get(WeakCache.java:230)
	at java.lang.reflect.WeakCache.get(WeakCache.java:127)
	at java.lang.reflect.Proxy.getProxyClass0(Proxy.java:419)
	at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:719)
	at com.alibaba.cloud.dubbo.openfeign.TargeterBeanPostProcessor.postProcessAfterInitialization(TargeterBeanPostProcessor.java:75)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:430)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1798)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
	... 21 common frames omitted

Analysis reason:

First of all, the project does not configure openfeign, but uses Dubbo, but why report the error of openfeign?Secondly, during initialization   There is an error in the configuration class of openfeign. It can be seen from this that the construction must be started by default. Now that you know the direction, go to see if there are openfeign packages in the imported packages, as follows:   Really, would it be good to remove the openfeign package?It’s OK to try. The problem is solved

  terms of settlement:

Exclude the package of openfeign. Note here that the spring cloud openfeign core package or the automatic loading of openfeign configuration in the startup class are excluded, as follows:

@SpringBootApplication(exclude = { FeignAutoConfiguration.class })