Exception when add variable to process instance

Camunda 7 Topics Discussion & Questions
,
1
  • I have created a workflow using process engine version: camunda-engine-7.11.0.
  • Then, I tried to add variable to process instance using camunda cockpit version: 7.13.0-SNAPSHOT
    I got this exception:
    error2
    error2275×608 38 KB

    I am to totally sure but I think this may happen due to the difference of versions of camunda-engine due to different database schema. If so, How to downgrade the version of process engine used in cockpit ?.