jBPM4流程定义发布出错与解决

jBPM4版本下，定义了下面的一个流程。

<?xml version="1.0" encoding="UTF-8"?>

<process name="SAMPLE" xmlns="http://jbpm.org/4/jpdl">
   <start g="16,18,48,48">
      <transition to="evaluate"/>
   </start>
   <state g="128,16,92,52" name="evaluate">
      <transition to="wire money"/>
   </state>
   <state g="280,19,92,52" name="wire money">
      <transition to="archive"/>
   </state>
   <state g="420,17,92,52" name="archive">
      <transition to="end"/>
   </state>
   <end g="561,20,48,48" name="end"/>
</process>

 

进行发布时，出现如下错误信息：

 

20:44:49,703 INF | [DefaultCommandService] exception while executing command org.jbpm.pvm.internal.cmd.DeployCmd@107108e
org.jbpm.api.JbpmException:
  error: no start activity in process
    at org.jbpm.pvm.internal.xml.ProblemList.getJbpmException(ProblemList.java:169)

 

后来，检查发现，去掉

<process name="SAMPLE" xmlns="http://jbpm.org/4/jpdl">

里面的xmlns="http://jbpm.org/4/jpdl"   项，发布即可成功。