AttributeError while using Django Rest Framework with serializers

Question

I am following a tutorial located here that uses Django Rest Framework, and I keep getting a weird error about a field.

I have the following model in my models.py<

Answer 1

Simple specify many=True when creating a serializer from queryset, TaskSerializer(tasks) will work only with one instance of Task:

tasks = Task.objects.all()
serializer = TaskSerializer(tasks, many=True)