Correct the classpath of your application so that it contains a single, compatible version of org.apache.log4j.ConsoleAppender

时间：2020-10-12 11:06:03 收藏：0 阅读：42

错误信息:

***************************
APPLICATION FAILED TO START
***************************

Description:

An attempt was made to call the method org.apache.log4j.ConsoleAppender.<init>(Lorg/apache/log4j/Layout;)V but it does not exist. Its class, org.apache.log4j.ConsoleAppender, is available from the following locations:

jar:file:/C:/Users/RedBack/.m2/repository/org/slf4j/log4j-over-slf4j/1.7.25/log4j-over-slf4j-1.7.25.jar!/org/apache/log4j/ConsoleAppender.class
jar:file:/C:/Users/RedBack/.m2/repository/log4j/log4j/1.2.14/log4j-1.2.14.jar!/org/apache/log4j/ConsoleAppender.class

It was loaded from the following location:

file:/C:/Users/RedBack/.m2/repository/org/slf4j/log4j-over-slf4j/1.7.25/log4j-over-slf4j-1.7.25.jar

Action:

Correct the classpath of your application so that it contains a single, compatible version of org.apache.log4j.ConsoleAppender

解决问题:

由于重新引入一个新的jar包,导致jar包冲突

在新引入的jar的使用位置排除即可

<exclusion>
    <groupId>org.slf4j</groupId>
    <artifactId>log4j-over-slf4j</artifactId>
</exclusion>
<exclusion>
    <artifactId>log4j</artifactId>
    <groupId>log4j.log4j</groupId>
</exclusion>

原文：https://www.cnblogs.com/redBack/p/13801128.html