CWZTS0037E The `0` Verify Event task does not specify an invocation.

Explanation
An invocation must be specified in the Verify Event task to indicate where to verify the event.
User response
Double-click the error message to get to the Test Cases page in the Test Suite editor. In the list of test cases, the Verify Event task is highlighted. Select an invocation to verify. If this Verify Event task is no longer valid, remove it.