No Feign Client for loadBalancing defined. Did you forget to include spring-clo

启动项目的时候一直提示No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-netflix-ribbon?这个错！

打开RibbonAutoConfiguration发现com.netflix.ribbon.Ribbon是红色的，说明它不存在找不到。

那就试试手动引入一下这个包试试。

```
<dependency>
    <groupId>com.netflix.ribbon</groupId>
    <artifactId>ribbon</artifactId>
    <version>2.3.0</version>
</dependency>

<dependency>
    <groupId>com.netflix.ribbon</groupId>
    <artifactId>ribbon-httpclient</artifactId>
    <version>2.3.0</version>
</dependency>

<dependency>
    <groupId>com.netflix.ribbon</groupId>
    <artifactId>ribbon-loadbalancer</artifactId>
    <version>2.3.0</version>
</dependency>
```

接下来再重新编译clean install一下，再次启动就正常启动成功！