java.lang.AbstractMethodError: Receiver class org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient does not define or inherit an implementation of the resolved method 'abstract org.springframework.cloud.client.ServiceInstance choose(java.lang.String, org.springframework.cloud.client.loadbalancer.Request)' of interface org.springframework.cloud.client.loadbalancer.ServiceInstanceChooser.
springboot：2.2.2
springcloud：2021.0.2
服务注册中心：Eureka
负载均衡：Ribbon
服务调用：OpenFeign 3.1.2
原因：spring-cloud-loadbalancer 和 ribbon-balancer 冲突，去除其中一个
Original: https://www.cnblogs.com/HypoPine/p/16670803.html
Author: HypoPine
Title: [已解决] OpenFeign 调用服务提供者出现的BUG
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