Nlu_Model - dictionary update sequence element #0 has length 1; 2 is required - error

[archimedesistanbul]

Nlu_model.py of the latest release, gives the following error :

Traceback (most recent call last):
  File "nlu_model.py", line 15, in <module>
    train_nlu('./data/data.json', 'config_spacy.json', './models/nlu')
  File "nlu_model.py", line 8, in train_nlu
    trainer = Trainer(config.load(configs))
  File "C:\Users\lenox\AppData\Local\Programs\Python\Python36\lib\site-packages\rasa_nlu\config.py", line 51, in load
    return RasaNLUModelConfig(file_config)
  File "C:\Users\lenox\AppData\Local\Programs\Python\Python36\lib\site-packages\rasa_nlu\config.py", line 119, in __init__
    self.override(configuration_values)
  File "C:\Users\lenox\AppData\Local\Programs\Python\Python36\lib\site-packages\rasa_nlu\config.py", line 196, in override
   ** self.__dict__.update(config)
ValueError: dictionary update sequence element #0 has length 1; 2 is required**

Here is the nlu_model file :

from rasa_nlu.training_data import load_data
from rasa_nlu import config
from rasa_nlu.model import Trainer

def train_nlu(data, configs, model_dir):
    training_data = load_data(data)
    trainer = Trainer(config.load(configs))
    trainer.train(training_data)
    model_directory = trainer.persist(model_dir, fixed_model_name = 'weathernlu')

if __name__ == '__main__':
    train_nlu('./data/data.json', 'config_spacy.json', './models/nlu')