Feign调用报错could not be registered. overriding is disabled的解决办法

问题描述：

Description:

The bean 'XXXX.FeignClientSpecification' could not be registered. A bean with that name has already been defined and overriding is disabled.

Action:XXXXXX

Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true

多个接口上的@FeignClient(“相同服务名”)会报错，overriding is disabled。

使用的版本 SpringBoot: 2.1.4.RELEASE，SpringCloud: Greenwich.SR1，OpenFeign: 2.1.1.RELEASE

解决办法：

在 application.properties 中添加

spring.main.allow-bean-definition-overriding=true

The bean 'eureka-provider.FeignClientSpecification', defined in null, could not be registered. 
A bean with that name has already been defined in null and overriding is disabled.