Setting scheduling method in generate preset passmanager raises error

[nonhermitian]

Environment

• Qiskit version: 1.1
• Python version:
• Operating system:

What is happening?

backend = service.get_backend('ibm_brisbane')
pm = generate_preset_pass_manager(backend=backend, optimization_level=3, scheduling_method="alap")

gives

File ~/mambaforge/envs/qiskit/lib/python3.11/site-packages/qiskit/transpiler/preset_passmanagers/common.py:573, in generate_scheduling(instruction_durations, scheduling_method, timing_constraints, inst_map, target)
566 scheduling.append(ContainsInstruction("delay"))
567 scheduling.append(
568 ConditionalController(
569 TimeUnitConversion(instruction_durations, target=target), condition=_contains_delay
570 )
571 )
572 if (
--> 573 timing_constraints.granularity != 1
574 or timing_constraints.min_length != 1
575 or timing_constraints.acquire_alignment != 1
576 or timing_constraints.pulse_alignment != 1
577 ):
578 # Run alignment analysis regardless of scheduling.
580 def _require_alignment(property_set):
581 return property_set["reschedule_required"]

AttributeError: 'NoneType' object has no attribute 'granularity'

How can we reproduce the issue?

run above

What should happen?

it should work

Any suggestions?

No response

[ElePT]

I think that this issue comes up because of the lack of input-handling logic in generate_preset_pass_manager, all of the transpiler constraint resolution logic takes place in transpile. In principle, #12185 should fix this problem (tested it locally and it works).