@Ingo_Richtsmeier i have found similar topic which you created, exactly the same issue im facing now. How did you solved it?
Also found few jira tickets related to this issue:
https://app.camunda.com/jira/browse/CAM-6365
Method isServiceTaskLike does not recognize that connector is set on a send task: https://app.camunda.com/jira/browse/CAM-5547
Exception which i got while deploying bpmn is:
e[1;31m[org.camunda.bpm.engine.context]e[0;39m e[31m[logError]e[0;39m @ 160 : e[32mENGINE-16004 Exception while closing command context: ENGINE-09005 Could not parse BPMN process. Errors:
* One of the attributes 'class', 'delegateExpression', 'type', or 'expression' is mandatory on sendTask. | orderprocess.bpmn | line 8 | column 109
* One of the attributes 'class', 'delegateExpression', 'type', or 'expression' is mandatory on sendTask. | orderprocess.bpmn | line 35 | column 108e[0;39m