rasa: Training a new rasa model from http-api using example provided fails.

Rasa version:2.0.6

Rasa SDK version (if used & relevant):

Rasa X version (if used & relevant):

Python version:3.8.5

Operating system (windows, osx, …):osx

Issue: Using the http-api & example provided unable to train the model

Error (including full traceback):

2020-11-24 09:22:19 DEBUG    rasa.server  - Extracting JSON payload with Markdown training data from request body.
2020-11-24 09:22:19 DEBUG    rasa.server  - request payload is:{'domain': 'intents:\n  - greet\n  - goodbye\n  - affirm\n  - deny\n  - mood_great\n  - mood_unhappy\n\nresponses:\n  utter_greet:\n  - text: "Hey! How are you?"\n\n  utter_cheer_up:\n  - text: "Here is something to cheer you up:"\n    image: "https://i.imgur.com/nGF1K8f.jpg"\n\n  utter_did_that_help:\n  - text: "Did that help you?"\n\n  utter_happy:\n  - text: "Great carry on!"\n\n  utter_goodbye:\n  - text: "Bye"', 'config': 'language: en\npipeline: supervised_embeddings\npolicies:\n  - name: MemoizationPolicy\n  - name: TEDPolicy', 'nlu': '- intent: greet\n  examples: |\n    - hey\n    - hello\n    - hi\n\n- intent: goodbye\n  examples: |\n    - bye\n    - goodbye\n    - have a nice day\n    - see you\n\n- intent: affirm\n  examples: |\n    - yes\n    - indeed\n\n- intent: deny\n  examples: |\n    - no\n    - never\n\n- intent: mood_great\n  examples: |\n    - perfect\n    - very good\n    - great\n\n- intent: mood_unhappy\n  examples: |\n    - sad\n    - not good\n    - unhappy', 'responses': "chitchat/ask_name: - text: my name is Sara, Rasa's documentation bot! chitchat/ask_weather: - text: it's always sunny where I live", 'stories': '- story: happy path\n  steps:\n  - intent: greet\n  - action: utter_greet\n  - intent: mood_great\n  - action: utter_happy\n\n- story: sad path 1\n  steps:\n  - intent: greet\n  - action: utter_greet\n  - intent: mood_unhappy\n  - action: utter_cheer_up\n  - action: utter_did_that_help\n  - intent: affirm\n  - action: utter_happy\n\n- story: sad path 2\n  steps:\n  - intent: greet\n  - action: utter_greet\n  - intent: mood_unhappy\n  - action: utter_cheer_up\n  - action: utter_did_that_help\n  - intent: deny\n  - action: utter_goodbye\n\n- story: say goodbye\n  steps:\n  - intent: goodbye\n  - action: utter_goodbye', 'force': False, 'save_to_default_model_directory': True}
2020-11-24 09:22:19 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/config.yml' is 'unk'.
2020-11-24 09:22:19 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/domain.yml' is 'rasa_yml'.
2020-11-24 09:22:19 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/nlu.md' is 'unk'.
2020-11-24 09:22:19 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/responses.md' is 'unk'.
2020-11-24 09:22:19 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/stories.md' is 'unk'.
2020-11-24 09:22:19 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/nlu.md' is 'unk'.
2020-11-24 09:22:19 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/responses.md' is 'unk'.
2020-11-24 09:22:19 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/stories.md' is 'unk'.
2020-11-24 09:22:20 INFO     rasa.shared.utils.validation  - The 'version' key is missing in the training data file /var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/domain.yml. Rasa Open Source will read the file as a version '2.0' file. See https://rasa.com/docs/rasa/training-data-format.
2020-11-24 09:22:20 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/domain.yml' is 'rasa_yml'.
2020-11-24 09:22:20 INFO     rasa.shared.utils.validation  - The 'version' key is missing in the training data file /var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/domain.yml. Rasa Open Source will read the file as a version '2.0' file. See https://rasa.com/docs/rasa/training-data-format.
2020-11-24 09:22:20 DEBUG    rasa.shared.importers.importer  - Added 0 training data examples from the story training data.
2020-11-24 09:22:20 DEBUG    rasa.shared.nlu.training_data.loading  - Training data format of '/var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/domain.yml' is 'rasa_yml'.
2020-11-24 09:22:20 INFO     rasa.shared.utils.validation  - The 'version' key is missing in the training data file /var/folders/cp/1v9r04wd7mz63xtx_klyr9g40000gn/T/tmpguneyh_s/domain.yml. Rasa Open Source will read the file as a version '2.0' file. See https://rasa.com/docs/rasa/training-data-format.
No training data given. Please provide stories and NLU data in order to train a Rasa model using the '--data' argument.
2020-11-24 09:22:20 ERROR    rasa.server  - Ran training, but it finished without a trained model.

Command or request that led to error:

Content of configuration file (config.yml) (if relevant):

Content of domain file (domain.yml) (if relevant):