jar包冲突：Correct the classpath of your application so that it contains a single, compatible version of

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在开发SpringCloud项目时，遇到由于不同版本的jar包依赖冲突引发的错误：`reactor.netty.resources.ConnectionProvider`不存在。错误提示建议检查并修正应用的类路径，确保其包含单一且兼容的`ConnectionProvider`版本。通过调整SpringBoot（2.2.2.RELEASE）和SpringCloud（Hoxton.SR8）的版本以达到兼容，成功解决了问题。

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今天写springcloud项目的时候碰到一个很坑的报错：

Correct the classpath of your application so that it contains a single, compatible version of reactor.netty.resources.ConnectionProvider

大致意思就是jar包各种依赖关系不兼容，完整报错如下

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-04-02 14:18:39.523 ERROR 94512 --- [           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.cloud.gateway.config.GatewayAutoConfiguration$NettyConfiguration.gatewayHttpClient(GatewayAutoConfiguration.java:622)

The following method did not exist:

    reactor.netty.resources.ConnectionProvider.elastic(Ljava/lang/String;Ljava/time/Duration;Ljava/time/Duration;)Lreactor/netty/resources/ConnectionProvider;

The method's class, reactor.netty.resources.ConnectionProvider, is available from the following locations:

    jar:file:/D:/Program%20Files/repository/io/projectreactor/netty/reactor-netty/0.9.2.RELEASE/reactor-netty-0.9.2.RELEASE.jar!/reactor/netty/resources/ConnectionProvider.class

It was loaded from the following location:

    file:/D:/Program%20Files/repository/io/projectreactor/netty/reactor-netty/0.9.2.RELEASE/reactor-netty-0.9.2.RELEASE.jar


Action:

Correct the classpath of your application so that it contains a single, compatible version of reactor.netty.resources.ConnectionProvider


Process finished with exit code 1