feign---消费者启动报错问题

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.bwton.tradecenter.tdbd.api.om.interfaces.BizOrderAccpetAPI': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: Incompatible fallback instance. Fallback/fallbackFactory of type class com.bwton.tradecenter.tdbd.api.om.interfaces.TdbdOrderFallbackFactory is not assignable to interface com.bwton.tradecenter.tdbd.api.om.interfaces.BizOrderAccpetAPI for feign client tdbd-om-service
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:185)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1640)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1316)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1282)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1101)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
    ... 32 common frames omitted
Caused by: java.lang.IllegalStateException: Incompatible fallback instance. Fallback/fallbackFactory of type class com.bwton.tradecenter.tdbd.api.om.interfaces.TdbdOrderFallbackFactory is not assignable to interface com.bwton.tradecenter.tdbd.api.om.interfaces.BizOrderAccpetAPI for feign client tdbd-om-service
    at org.springframework.cloud.netflix.feign.HystrixTargeter.getFromContext(HystrixTargeter.java:100)
    at org.springframework.cloud.netflix.feign.HystrixTargeter.targetWithFallback(HystrixTargeter.java:85)
    at org.springframework.cloud.netflix.feign.HystrixTargeter.target(HystrixTargeter.java:49)
    at org.springframework.cloud.netflix.feign.FeignClientFactoryBean.loadBalance(FeignClientFactoryBean.java:145)
    at org.springframework.cloud.netflix.feign.FeignClientFactoryBean.getObject(FeignClientFactoryBean.java:166)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:178)
    ... 42 common frames omitted