# SpringBoot报错问题解决: Correct the classpath of your application so that it contains a single ...

末蓝、 2023-09-27 09:17 110阅读 0赞

# SpringBoot报错问题解决: Correct the classpath of your application so that it contains a single … #

## 问题： ##

![在这里插入图片描述][1ac268c958974d32afe36d544015416d.png]

2022-09-09 14:47:41.412  INFO 19816 --- [           main] com.pro.reggie.ReggieApplication         : Starting ReggieApplication using Java 1.8.0_202 on Amy-PC with PID 19816 (C:\PracticeCoding\Restaurt_Project\target\classes started by xuchu in C:\PracticeCoding\Restaurt_Project)
    2022-09-09 14:47:41.414  INFO 19816 --- [           main] com.pro.reggie.ReggieApplication         : No active profile set, falling back to default profiles: default
    2022-09-09 14:47:41.445  WARN 19816 --- [kground-preinit] o.s.h.c.j.Jackson2ObjectMapperBuilder    : For Jackson Kotlin classes support please add "com.fasterxml.jackson.module:jackson-module-kotlin" to the classpath
    2022-09-09 14:47:41.448  WARN 19816 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor': Cannot resolve reference to bean 'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory' while setting bean property 'metadataReaderFactory'; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is java.lang.NoSuchMethodError: org.springframework.expression.spel.support.StandardTypeConverter.<init>(Ljava/util/function/Supplier;)V
    2022-09-09 14:47:41.459 ERROR 19816 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 
    
    ***************************
    APPLICATION FAILED TO START
    ***************************
    
    Description:
    
    An attempt was made to call a method that does not exist. The attempt was made from the following location:
    
        org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:160)
    
    The following method did not exist:
    
        org.springframework.expression.spel.support.StandardTypeConverter.<init>(Ljava/util/function/Supplier;)V
    
    The method's class, org.springframework.expression.spel.support.StandardTypeConverter, is available from the following locations:
    
        jar:file:/C:/enviroment/apache-maven-3.8.6-bin/apache-maven-3.8.6/maven-repo/org/springframework/spring-expression/5.3.6/spring-expression-5.3.6.jar!/org/springframework/expression/spel/support/StandardTypeConverter.class
    
    The class hierarchy was loaded from the following locations:
    
        org.springframework.expression.spel.support.StandardTypeConverter: file:/C:/enviroment/apache-maven-3.8.6-bin/apache-maven-3.8.6/maven-repo/org/springframework/spring-expression/5.3.6/spring-expression-5.3.6.jar
    
    
    Action:
    
    Correct the classpath of your application so that it contains a single, compatible version of org.springframework.expression.spel.support.StandardTypeConverter
    
    
    Process finished with exit code 1

## 原因: ##

编译时遇到此类问题，”Correct the classpath of your application so that it contains a single…"，jar包冲突，maven根据它的依赖原则最终选择了某个版本

可能maven选择了版本比较高的jar包，一般不会出现兼容性问题。但如果使用较低版本依赖的程序出现找不到相关类的错误。

## 解决方法: ##

统一版本号，即可解决问题！！！  
![在这里插入图片描述][5b6f990f19da4dc19976e51bc2a437da.png]

[1ac268c958974d32afe36d544015416d.png]: https://img-blog.csdnimg.cn/1ac268c958974d32afe36d544015416d.png
[5b6f990f19da4dc19976e51bc2a437da.png]: https://img-blog.csdnimg.cn/5b6f990f19da4dc19976e51bc2a437da.png

# SpringBoot报错问题解决: Correct the classpath of your application so that it contains a single ...

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