[Python] Error with ManyToManyField relation in Django

I am creating a kanban django model to my project, but i already tried a lot of things, i have read the django.docs, but i didn't find anything.

ERRORS: tasks_management.Account.projects: (fields.E339) 'AccountProjects.owner' is not a foreign key to 'Project'. tasks_management.AccountProjects: (fields.E336) The model is used as an intermediate model by 'tasks_management.Account.projects', but it does not have a foreign key to 'Account' or 'Project'.


from django.contrib.auth.models import User
from django.db import models

class Project(models.Model):
project_name = models.CharField(max_length=50)

def __str__(self):
return self.project_name

class Account(models.Model):
username = models.CharField(max_length=50)
email = models.EmailField(max_length=254)
password = models.CharField(max_length=30)
projects = models.ManyToManyField(
Project,
through='AccountProjects',
through_fields=('contributors', 'owner'),
blank=True
)

def __str__(self):
return self.username

class AccountProjects(models.Model):
owner = models.ForeignKey(Account, on_delete=models.CASCADE, related_name='owner_project')
contributors = models.ForeignKey(Account, on_delete=models.CASCADE, related_name='contributors_project')

#
# class Board(models.Model):
# project_name = models.ForeignKey(Project, on_delete=models.CASCADE)
#
# def __str__(self):
# return self.project_name.project_name
#
# class Column(models.Model):
# column_name = models.CharField(max_length=30)
# board_name = models.ForeignKey(Board, on_delete=models.CASCADE)
# order_position = models.IntegerField(default=1)
#
# def __str__(self):
# return self.column_name
#
# class Task(models.Model):
# task_name = models.CharField(max_length=50)
# description = models.TextField()
# creation_date = models.DateField(auto_created=True)
# updated_date = models.DateField(auto_now=True)
# column_name = models.ForeignKey(Column, on_delete=models.CASCADE)
#
# def __str__(self):
# return self.task_name


I read the docs, but i didn't find anything, the database requirements are:

a account doesn't need a project to be instantiated a project does need a account to be instantiated a project has 1 owner, and multiple contributors

a project has 1 board a board has multiple columns a task has 1 column

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