unsupported class file major version62

This error message typically occurs when you are trying to run a Java class file that was compiled with a higher version of the Java Development Kit (JDK) than the one you are currently using.

The number "62" in the error message refers to the major version number of the JDK used to compile the class file. Each version of the JDK has a unique major version number, and the major version number of the JDK you are using must be equal to or greater than the one used to compile the class file.

To resolve this error, you need to either upgrade your JDK to a version that supports the class file's major version number, or recompile the class file with a lower version of the JDK.

相关问题

Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [E:\download\01-spring\day02\daima\spring\spring_11_annotation_bean\target\classes\com\itheima\dao\impl\BookDaoImpl.class]; nested exception is org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [E:\download\01-spring\day02\daima\spring\spring_11_annotation_bean\target\classes\com\itheima\dao\impl\BookDaoImpl.class]; nested exception is java.lang.IllegalArgumentException: Unsupported class file major version 62

这个异常是由于Spring框架无法读取候选的组件类引起的。具体原因是ASM ClassReader无法解析类文件，可能是由于一个不支持的Java类文件版本引起的。根据错误信息，Java类文件的主要版本号为62，而当前使用的ASM版本不支持这个版本号。

解决这个问题的方法是更新使用的ASM库，以支持更高的Java类文件版本。你可以尝试升级Spring框架或者通过更新相关依赖来解决这个问题。另外，确保你使用的Java版本与所使用的Spring框架和相关依赖库兼容。

Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [C:\Users\86156\Desktop\ceph\target\classes\com\itcast\ceph\startup\CephDemoApplication.class]; nested exception is org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [C:\Users\86156\Desktop\ceph\target\classes\com\itcast\ceph\startup\CephDemoApplication.class]; nested exception is java.lang.IllegalArgumentException: Unsupported class file major version 62 2023-05-22 22:45:54.061 ERROR 18488 --- [ main] o.s.boot.SpringApplication : Application run failed

这个错误提示是因为你的项目中使用了不支持的 Java 版本。错误信息中指出了不支持的类文件主要版本号为 62，这对应的是 Java 18。你需要检查你的项目中是否使用了 Java 18，如果是的话，可以将其降级为支持的 Java 版本，比如 Java 17 或更低版本。或者你也可以升级你的 Spring Boot 版本，以支持 Java 18。