2021-08-10 15:53:07.873  WARN 6591 --- [           main] c.a.nacos.sys.file.WatchFileCenter       : [WatchFileCenter] start close
2021-08-10 15:53:07.873  WARN 6591 --- [           main] c.a.nacos.sys.file.WatchFileCenter       : [WatchFileCenter] start to shutdown this watcher which is watch : /Users/eistert/nacos/conf
2021-08-10 15:53:07.873  WARN 6591 --- [           main] c.a.nacos.sys.file.WatchFileCenter       : [WatchFileCenter] already closed
2021-08-10 15:53:07.874  WARN 6591 --- [           main] c.a.nacos.common.notify.NotifyCenter     : [NotifyCenter] Start destroying Publisher
2021-08-10 15:53:07.874  WARN 6591 --- [           main] c.a.nacos.common.notify.NotifyCenter     : [NotifyCenter] Destruction of the end
2021-08-10 15:53:07.874 ERROR 6591 --- [           main] c.a.n.c.l.StartingApplicationListener    : Nacos failed to start, please see /Users/eistert/nacos/logs/nacos.log for more details.
2021-08-10 15:53:07.916 ERROR 6591 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/Users/eistert/.m2/repository/com/pig4cloud/nacos/nacos-api/2.0.3/nacos-api-2.0.3.jar!/com/alibaba/nacos/api/naming/selector/Selector.class]; nested exception is java.lang.IllegalArgumentException: No enum constant com.fasterxml.jackson.annotation.JsonTypeInfo.Id.DEDUCTION
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:452)
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:315)
	at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:276)
	at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:132)
	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:296)
	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:250)
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:207)
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:175)
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:336)
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:252)
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:285)
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:99)
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:751)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:569)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:326)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300)
	at com.alibaba.nacos.GschNacosApplication.main(GschNacosApplication.java:39)
Caused by: java.lang.IllegalArgumentException: No enum constant com.fasterxml.jackson.annotation.JsonTypeInfo.Id.DEDUCTION
	at java.lang.Enum.valueOf(Enum.java:238)
	at org.springframework.core.type.classreading.MergedAnnotationReadingVisitor.visitEnum(MergedAnnotationReadingVisitor.java:105)
	at org.springframework.core.type.classreading.MergedAnnotationReadingVisitor.visitEnum(MergedAnnotationReadingVisitor.java:80)
	at org.springframework.asm.ClassReader.readElementValue(ClassReader.java:3056)
	at org.springframework.asm.ClassReader.readElementValues(ClassReader.java:2975)
	at org.springframework.asm.ClassReader.accept(ClassReader.java:585)
	at org.springframework.asm.ClassReader.accept(ClassReader.java:401)
	at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:49)
	at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103)
	at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:123)
	at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.scanCandidateComponents(ClassPathScanningCandidateComponentProvider.java:429)
	... 21 common frames omitted

按照Spring Cloud Alibaba 推荐对应的SpringBoot和Spring Cloud版本，源码启动nacos-2.0.3报错。

查了一天的资源和试了各种方法，最后发现应该是nacos2.0.3和Spring版本的问题。

按SpringCloudAlibaba推荐的那一套，Spring的版本是5.3.3

按PigCloud平台推荐的Spring Cloud Alibaba和SpringBoot、Spring Cloud对应的版本Spring的版本是：5.3.9

源码启动nacos成功：