Error reported when setting up Eureka server:

2021-09-09 22:25:17.334  WARN 20052 --- [           main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bootstrapImportSelectorConfiguration': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationPropertiesBean
2021-09-09 22:25:17.340  INFO 20052 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-09-09 22:25:17.348 ERROR 20052 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bootstrapImportSelectorConfiguration': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationPropertiesBean
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:847) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:140) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:212) [spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:117) [spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:74) [spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) [spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) [spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) [spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) [spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:342) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at com.laohe.cloud.eurake.EurakeApplication.main(EurakeApplication.java:17) [classes/:na]
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationPropertiesBean
	at org.springframework.cloud.context.properties.ConfigurationPropertiesBeans.postProcessBeforeInitialization(ConfigurationPropertiesBeans.java:94) ~[spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:414) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1770) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	... 26 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.context.properties.ConfigurationPropertiesBean
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_211]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_211]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_211]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_211]
	... 30 common frames omitted

2021-09-09 22:25:17.349 ERROR 20052 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bootstrapImportSelectorConfiguration': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationPropertiesBean
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:847) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:140) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:212) ~[spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:117) ~[spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:74) ~[spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:342) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
	at com.laohe.cloud.eurake.EurakeApplication.main(EurakeApplication.java:17) [classes/:na]
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationPropertiesBean
	at org.springframework.cloud.context.properties.ConfigurationPropertiesBeans.postProcessBeforeInitialization(ConfigurationPropertiesBeans.java:94) ~[spring-cloud-context-2.2.5.RELEASE.jar:2.2.5.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:414) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1770) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
	... 26 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.context.properties.ConfigurationPropertiesBean
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_211]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_211]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_211]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_211]
	... 30 common frames omitted

It means creating a bean named “bootstrap importselectorconfiguration”. Error: bean initialization failed;

2. Inspection items

1. Configuration file (no problem)

2. Eureka server dependency (no problem)

3. Start class check (no problem)

4. Springboot and spring cloud (problem) — the version is too high

Many blogs talk about reducing the springboot dependency version. I tried to reduce the springboot dependency version only, but still an error will be reported
it may be that the boot version is incompatible with the cloud version, and I don’t know the exact problem. I just guess. If you know the reason, you can explain it. Thank you

3. Solution

Change the dependent version as shown in the figure below

Operation results after modification:

access Eureka address (successful takeoff):