## 具体报错信息
```
***************************
APPLICATION FAILED TO START
***************************
Description:
The bean 'proxyRequestHelper', defined in class path resource [org/springframework/cloud/netflix/zuul/ZuulProxyAutoConfiguration$NoActuatorConfiguration.class], could not be registered. A bean with that name has already been defined in class path resource [org/springframework/cloud/netflix/zuul/ZuulProxyAutoConfiguration$EndpointConfiguration.class] and overriding is disabled.
Action:
Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true
```
## 原因
原因是SpringBoot的版本和SpringCloud的`版本不兼容`。之前使用的SpringBoot版本为`2.1.7.RELEASE`,SpringCloud的版本为`Finchley.RELEASE`。
## 解决
SpringCloud版本不变,将SpringBoot版本改为`2.0.x.RELEASE`即可。或者SpringBoot版本不变,将SpringCloud版本改为`Greenwich`版本。
## SpringBoot、SpringCloud版本适配表

图片中内容来自Spring官网。第一列是SpringCloud的版本,第二列是兼容的SpringBoot的版本。

解决启动Zuul时报错:The bean ‘proxyRequestHelper‘, defined in class path resource [org/springframework/cloud