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APPLICATION FAILED TO START
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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:675)
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:/Devtools/maven/repository/io/projectreactor/netty/reactor-netty/0.9.1.RELEASE/reactor-netty-0.9.1.RELEASE.jar!/reactor/netty/resources/ConnectionProvider.class
It was loaded from the following location:
file:/D:/Devtools/maven/repository/io/projectreactor/netty/reactor-netty/0.9.1.RELEASE/reactor-netty-0.9.1.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
修改版本前
<properties>
<spring-boot.version>2.2.3</spring-boot.version>
<spring-cloud.version>Hoxton.SR3</spring-cloud.version>
<com-alibaba-cloud.version>2.2.1.RELEASE</com-alibaba-cloud.version>
</properties>
修改后
<properties>
<spring-boot.version>2.2.1</spring-boot.version>
<spring-cloud.version>Hoxton.SR1</spring-cloud.version>
<com-alibaba-cloud.version>2.2.1.RELEASE</com-alibaba-cloud.version>
</properties>
参考：https://www.jianshu.com/p/f47ebd1eaa51