低版本idea使用@FeignClient导致 RequestParam.value() was empty

低版本idea使用@FeignClient导致 RequestParam.value() was empty

1.问题发现
在开发过程中发现了一个令人脑壳疼的问题，就是在使用@FeignClient时，idea总是报错，但是别的同事运行代码却没有问题，
唯一的区别就是本人使用的idea版本较低，为2018年的版本。
错误如下：

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.x.x.xxFeignClient': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: RequestParam.value() was empty on parameter 0
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:178)
	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:101)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1674)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getObjectForBeanInstance(AbstractAutowireCapableBeanFactory.java:1249)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:257)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1474)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1431)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1214)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1171)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
	... 45 common frames omitted
Caused by: java.lang.IllegalStateException: RequestParam.value() was empty on parameter 0
	at feign.Util.checkState(Util.java:130)

2.问题解决
为了解决这个问题，查了一波资料。终于！！！
这个问题有两种解决方案：
方案一：简单粗暴， 升级idea至2019以上版本
方案二：加上 -parameters参数，如图1，然后重新编译项目，如图2，就可以运行成功了

以上是自己学习过程的理解，如有不妥，谢谢指正~
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