Got an error while coding in django

 error is in an element name "price" in model.py.

error:    return field.get_db_prep_save(self._effective_default(field), self.conne

ction)

  File "C:\Users\Shubrajit Acharjee\PycharmProjects\untitled\lib\site-packag

es\django\db\models\fields\__init__.py", line 823, in get_db_prep_save

    return self.get_db_prep_value(value, connection=connection, prepared=Fal

se)

  File "C:\Users\Shubrajit Acharjee\PycharmProjects\untitled\lib\site-packag

es\django\db\models\fields\__init__.py", line 818, in get_db_prep_value

    value = self.get_prep_value(value)

  File "C:\Users\Shubrajit Acharjee\PycharmProjects\untitled\lib\site-packag

es\django\db\models\fields\__init__.py", line 1776, in get_prep_value

    raise e.__class__(

ValueError: Field 'price' expected a number but got ''.

solution:Go to migrations file and delete all the auto generated migration files related to element "price" and code correctly in models.py file and run python manage.py makemigrations and migrate commands. Problem solved

source:https://www.reddit.com/r/django/comments/ekuv27/valueerror_field_id_expected_a_number_but_got_on/ 

after solving output:

>python manage.py makemigrations

Migrations for 'shop':

  shop\migrations\0003_auto_20200830_2343.py

    - Add field category to product

    - Add field image to product

    - Add field price to product

    - Add field subcategory to product

(untitled) C:\Users\Shubrajit Acharjee\PycharmProjects\ecomsitedjango\mycart

>python manage.py migrate

Operations to perform:

  Apply all migrations: admin, auth, contenttypes, sessions, shop

Running migrations:

  Applying shop.0003_auto_20200830_2343... OK