# StopIterator Error Rasa Train

**URL:** <https://forum.rasa.com/t/stopiterator-error-rasa-train/61334>\
**Category:** Rasa Open Source\
**Created:** [March 14, 2024, 6:17pm UTC](https://forum.rasa.com/t/stopiterator-error-rasa-train/61334 "2024-03-14T18:17:57Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![dhdez-blife](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/dhdez-blife/32/23809_2.png) [@dhdez-blife](https://forum.rasa.com/u/dhdez-blife)\
**Post date:** [March 14, 2024, 6:17pm UTC](https://forum.rasa.com/t/stopiterator-error-rasa-train/61334/1 "2024-03-14T18:17:57Z")

</div>

I have the following error after type `rasa train --debug` command

```auto
tch object; span=(0, 47), match='[Folic Acid Blend]{"entity":"product_selected"}'>
2024-03-14 12:14:24 DEBUG rasa.shared.nlu.training_data.entities_parser - Entity annotation regex match: <re.Match object; span=(0, 65), match='[Night Serum | Serum de Noche 60 ml]{"entity":"pr>
2024-03-14 12:14:24 DEBUG rasa.shared.nlu.training_data.entities_parser - Entity annotation regex match: <re.Match object; span=(0, 59), match='[Kit Day & Night Serum 120 ml]{"entity":"product_>
2024-03-14 12:14:24 DEBUG rasa.shared.nlu.training_data.entities_parser - Entity annotation regex match: <re.Match object; span=(0, 84), match='[Botella Térmica Para Niños | Unicornio 18 oz (53>
Traceback (most recent call last):
  File "C:\Users\diego\.pyenv\pyenv-win\versions\3.10.4\lib\runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Users\diego\.pyenv\pyenv-win\versions\3.10.4\lib\runpy.py", line 86, in _run_code
2024-03-14 12:14:24 DEBUG urllib3.connectionpool - Starting new HTTPS connection (1): o251570.ingest.sentry.io:443
    exec(code, run_globals)
  File "C:\blife\ai\chatbot\venv\Scripts\rasa.exe\ __main__.py", line 7, in <module>
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\ __main__.py", line 133, in main
    cmdline_arguments.func(cmdline_arguments)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\cli\train.py", line 61, in <lambda>
    train_parser.set_defaults(func=lambda args: run_training(args, can_exit=True))
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\cli\train.py", line 97, in run_training
    rasa.cli.utils.validate_files(
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\cli\utils.py", line 231, in validate_files
    validator = Validator.from_importer(importer)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\validator.py", line 58, in from_importer
    domain = importer.get_domain()
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\utils\common.py", line 145, in decorated
    to_cache = f(self, *args, **kwargs)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\importers\importer.py", line 475, in get_domain
    e2e_domain = self._get_domain_with_e2e_actions()
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\importers\importer.py", line 481, in _get_domain_with_e2e_actions
    stories = self.get_stories()
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\importers\importer.py", line 500, in get_stories
    return self.importer.get_stories(exclusion_percentage)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\importers\importer.py", line 426, in get_stories
    return self._importer.get_stories(exclusion_percentage)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\utils\common.py", line 145, in decorated
    to_cache = f(self, *args, **kwargs)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\importers\importer.py", line 283, in get_stories
    stories = [
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\importers\importer.py", line 284, in <listcomp>
    importer.get_stories(exclusion_percentage) for importer in self._importers
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\importers\rasa.py", line 60, in get_stories
    return utils.story_graph_from_paths(
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\importers\utils.py", line 21, in story_graph_from_paths
    story_steps = loading.load_data_from_files(files, domain, exclusion_percentage)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\core\training_data\loading.py", line 80, in load_data_from_files
    steps = reader.read_from_file(story_file)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\core\training_data\story_reader\yaml_story_reader.py", line 109, in read_from_file
    return self.read_from_string(
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\core\training_data\story_reader\yaml_story_reader.py", line 137, in read_from_string
    return self.read_from_parsed_yaml(yaml_content)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\core\training_data\story_reader\yaml_story_reader.py", line 161, in read_from_parsed_yaml
    parser.parse_data(data)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\core\training_data\story_reader\yaml_story_reader.py", line 228, in parse_data
    self._parse_plain_item(item)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\core\training_data\story_reader\yaml_story_reader.py", line 258, in _parse_plain_item
    self._parse_step(step)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\core\training_data\story_reader\yaml_story_reader.py", line 291, in _parse_step
    self._parse_slot(step)
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\core\training_data\story_reader\yaml_story_reader.py", line 506, in _parse_slot
    SlotSet.type_name, {slot: self._slot_default_value(slot)}
  File "C:\blife\ai\chatbot\venv\lib\site-packages\rasa\shared\core\training_data\story_reader\yaml_story_reader.py", line 527, in _slot_default_value
    slot = next(slot for slot in self.domain.slots if slot.name == slot_name)
StopIteration
2024-03-14 12:14:25 DEBUG urllib3.connectionpool - https://o251570.ingest.sentry.io:443 "POST /api/2801673/store/ HTTP/1.1" 200 0

```

Someone have an idea why launched this error?

Thanks