Sometimes tasks are created for which there are no associated '.ecf' file. During job generation in the server and checking via the python API, these tasks will show as errors. To suppress job generation errors, a task can be marked as a dummy task.
the_task = ecflow.Task('t1')
the_task.add_variable("ECF_DUMMY_TASK","any") # the_task += Edit(ECF_DUMMY_TASK="any")