工作流找不到参与人

在工作流的审批节点增加了条件参与人，在还未走到这步审批时可以看到估计参与人，但真正走到这步审批时就找不到参与人了。请问这是出现了什么问题？

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Caused by: com.kingdee.bos.workflow.WfException :
没有找到活动(公司人力审核)的参与人！
com.kingdee.bos.workflow.WfException: 没有找到活动(公司人力审核)的参与人！
at com.kingdee.bos.workflow.engine.listener.AbstractAssignmentCheck.suspend(AbstractAssignmentCheck.java:64)
at com.kingdee.bos.workflow.engine.listener.AbstractAssignmentCheck.execute(AbstractAssignmentCheck.java:55)
at com.kingdee.cbos.process.vm.internal.i.wrapper.NodeListenerWrapper.execute(NodeListenerWrapper.java:42)
at com.kingdee.cbos.process.vm.internal.i.wrapper.ListenerWrapper.invoke(ListenerWrapper.java:50)
at com.kingdee.cbos.process.vm.internal.r.ExecutionImpl.execute(ExecutionImpl.java:708)
at com.kingdee.cbos.process.vm.internal.r.ControllerImpl.execute(ControllerImpl.java:68)
at com.kingdee.cbos.process.vm.internal.r.ControllerImpl.execute(ControllerImpl.java:54)
at com.kingdee.cbos.process.vm.internal.r.ControllerImpl.execute(ControllerImpl.java:32)
at com.kingdee.cbos.process.vm.internal.r.FlowContextImpl.signal(FlowContextImpl.java:524)
at com.kingdee.bos.workflow.engine.core.thread.FlowSignaler.execute(FlowSignaler.java:80)
at com.kingdee.bos.workflow.engine.core.thread.WfJobHandler.handler(WfJobHandler.java:175)
at sun.reflect.GeneratedMethodAccessor494.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:600)
at com.kingdee.bos.workflow.util.InvocationExecutor.execute(InvocationExecutor.java:28)
at com.kingdee.bos.workflow.transaction.WfTxInvoker.invoke(WfTxInvoker.java:33)
at sun.reflect.GeneratedMethodAccessor276.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:600)
at com.kingdee.bos.workflow.metas.InvokeMethodDelegateControllerBean.invoke(InvokeMethodDelegateControllerBean.java:77)
at com.kingdee.bos.workflow.metas.InvokeMethodDelegateControllerBean._invokeRequired(InvokeMethodDelegateControllerBean.java:31)
at com.kingdee.bos.workflow.metas.AbstractInvokeMethodDelegateControllerBean.invokeRequired(AbstractInvokeMethodDelegateControllerBean.java:46)
at sun.reflect.GeneratedMethodAccessor449.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:600)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean.invoke(TxInvokerBean.java:116)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean.INVOKE_REQUIRED(TxInvokerBean.java:57)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean_LocalObjectImpl_2.INVOKE_REQUIRED(Unknown Source)
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:171)
at com.kingdee.bos.transaction.EJBTransactionProxy.invoke(EJBTransactionProxy.java:324)
at com.sun.proxy.$Proxy127.invokeRequired(Unknown Source)
at com.kingdee.bos.workflow.metas.InvokeMethodDelegate.invokeRequired(InvokeMethodDelegate.java:61)
at sun.reflect.GeneratedMethodAccessor448.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:600)
at com.kingdee.bos.ResponseInvocationHandler.invoke(ResponseInvocationHandler.java:194)
at com.sun.proxy.$Proxy126.invokeRequired(Unknown Source)
at com.kingdee.bos.workflow.transaction.WfTxHelper.invokeRequired(WfTxHelper.java:83)
at com.kingdee.bos.workflow.engine.core.thread.WfJobHandler.invoke(WfJobHandler.java:71)
at com.kingdee.bos.workflow.engine.core.thread.WfJobHandler.invoke(WfJobHandler.java:163)
at com.kingdee.bos.workflow.engine.core.thread.WfJobHandler.execute(WfJobHandler.java:92)
at com.kingdee.bos.service.job.core.ThreadWorker.execute(ThreadWorker.java:143)
at com.kingdee.bos.service.job.core.ThreadWorker.run(ThreadWorker.java:102)
at java.lang.Thread.run(Thread.java:738)
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