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Service task problem with rc1

frauke

Hello everybody,

after I switched to the new version 5.0-rc1 I get the following error message with a serviceTask:

org.activiti.engine.ActivitiException: 'class', 'type', or 'expression' attribute is mandatory on serviceTask | de/vps/act/process/ButtonTestProcess3.bpmn20.xml | line 34 | column 69
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But the BPMN definition did not change and it was ok with beta2.
Here is the definition:

        <serviceTask id="t3" name="T3" activiti:class="de.vps.act.process.DummyActivitiTask" />
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Do you have any idea what the problem could be?

Frauke

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Comments

frederikherema1

No need to use the activiti-namespace prefix on attributes anymore. Just use this:

<serviceTask id="t3" name="T3" class="de.vps.act.process.DummyActivitiTask" />

Woops, was too fast. This comment only applies for custom activiti-elements

frederikherema1

The custom BPMN extentions-namespace uri has switched from "http://activiti.org/bpmn-extensions" to "http://activiti.org/bpmn"

Be sure to use this in your root element:

<definitions<br>&nbsp; xmlns="<a href="http://www.omg.org/spec/BPMN/20100524/MODEL" rel="nofollow noopener noreferrer">http://www.omg.org/spec/BPMN/20100524/MODEL</a>"<br>&nbsp; xmlns:activiti="<a href="http://activiti.org/bpmn" rel="nofollow noopener noreferrer">http://activiti.org/bpmn</a>"<br>&nbsp; targetNamespace="Examples">

frauke

ok, that works.
I hope you don't do that with every new release, though

frederikherema1

We won't I promise

Since this was the RC1-release, this was the right time to make sure we are pleased with how everything is named. After the GA we want to keep all this core-stuff as stable as possible.

asbachb

I'm afraid that i am facing the same problem - but can not solve it with the tips in this thread:

My XML:

<br><?xml version="1.0" encoding="UTF-8"?><br><definitions id="definitions"<br>&nbsp; xmlns="<a href="http://www.omg.org/spec/BPMN/20100524/MODEL" rel="nofollow noopener noreferrer">http://www.omg.org/spec/BPMN/20100524/MODEL</a>"<br>&nbsp; xmlns:activiti="<a href="http://activiti.org/bpmn" rel="nofollow noopener noreferrer">http://activiti.org/bpmn</a>"<br>&nbsp; targetNamespace="Examples"><br> <process id="helloworld" name="helloworld"><br>&nbsp; <startEvent id="startevent1" name="Start"></startEvent><br>&nbsp; <serviceTask id="servicetask1" name="Service Task"<br>&nbsp;&nbsp; activiti:class="de.asbach.alldeakz.bpmn.task.HelloServiceTask"></serviceTask><br>&nbsp; <sequenceFlow id="flow1" name="" sourceRef="startevent1"<br>&nbsp;&nbsp; targetRef="servicetask1"></sequenceFlow><br>&nbsp; <sequenceFlow id="flow2" name="" sourceRef="servicetask1"<br>&nbsp;&nbsp; targetRef="endevent1"></sequenceFlow><br>&nbsp; <endEvent id="endevent1" name="End"></endEvent><br> </process><br></definitions>

Inovking with:

 public void testBPMNProcess() throws Exception {<br>&nbsp; ProcessEngine processEngine = new ProcessEngineBuilder()<br>&nbsp; .configureFromPropertiesResource("activiti.properties")<br>&nbsp; .buildProcessEngine();<br><br>&nbsp; RepositoryService reposity = processEngine.getRepositoryService();<br>&nbsp; reposity<br>&nbsp;&nbsp; .createDeployment()<br>&nbsp;&nbsp; //.addClasspathResource("example.xml")<br>&nbsp;&nbsp; .addClasspathResource("step_by_step.bpmn20.xml")<br>&nbsp;&nbsp; .deploy();<br>&nbsp; <br>&nbsp; ProcessInstance pi = processEngine<br>&nbsp;&nbsp; .getRuntimeService()<br>&nbsp;&nbsp; .startProcessInstanceByKey("helloworld");

But get the error:
org.activiti.engine.ActivitiException: 'class' or 'expr' attribute is mandatory on serviceTask

May you can give me a hint.

jbarrez

Which version of Activiti are you using?

The error seems to be the output of an exception from a previous release, while the namespace declaration is the latest one.

asbachb

Thanks for your suggestions. I updated the designer but forget to update the version in the pom file. Sorry for that.