DUBBO：前端调用后端服务返回类名

1.美图

2.背景

前端调用了一个DUBBO的接口

但是返回值却是后端的一个类

后端如下

查看网关报错了

[2019-12-18 14:06:46.398] - error: [24310] dubbo proxy, socket client closed had_error:  java.lang.NoSuchMethodException: com.dtwave.cheetah.api.service.task.RpcStreamTaskService.editChildTask(com.dtwave.cheetah.api.param.task.stream.ChildTaskEditParam)
    at java.lang.Class.getMethod (Class.java:1786)
    at com.alibaba.dubbo.validation.support.jvalidation.JValidator.validate (JValidator.java:247)
    at com.alibaba.dubbo.validation.filter.ValidationFilter.invoke (ValidationFilter.java:50)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke (ProtocolFilterWrapper.java:72)
    at com.alibaba.dubbo.rpc.filter.ExceptionFilter.invoke (ExceptionFilter.java:62)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke (ProtocolFilterWrapper.java:72)
    at com.alibaba.dubbo.monitor.support.MonitorFilter.invoke (MonitorFilter.java:75)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke (ProtocolFilterWrapper.java:72)
    at com.alibaba.dubbo.rpc.filter.TimeoutFilter.invoke (TimeoutFilter.java:42)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke (ProtocolFilterWrapper.java:72)
    at com.alibaba.dubbo.rpc.filter.AccessLogFilter.invoke (AccessLogFilter.java:155)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke (ProtocolFilterWrapper.java:72)
    at com.alibaba.dubbo.rpc.protocol.dubbo.filter.TraceFilter.invoke (TraceFilter.java:78)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke (ProtocolFilterWrapper.java:72)
    at com.alibaba.dubbo.rpc.filter.ContextFilter.invoke (ContextFilter.java:73)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke (ProtocolFilterWrapper.java:72)
    at com.alibaba.dubbo.rpc.filter.GenericFilter.invoke (GenericFilter.java:138)
    at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke (ProtocolFilterWrapper.java:72)
    at com.alibaba.dubbo.rpc.filter.ClassLoaderFilter.invoke (ClassLoaderFilter.java:38)

不晓得这个是什么问题？最后全量更新了一次网关就好了