Can't have empty fixture file with Auto Increment Field in Model

[anonymous]

You can't have a empty fixture file when model has Auto Increment Field.

class Category(models.Model):

id = models.AutoField(primary_key=True)
parent_id = models.IntegerField()
name = models.CharField(maxlength=200)

Problem installing fixture 'c:\mysite\apps\category\fixtures
\initial_data.yaml': 'NoneType' object has no attribute 'anchor'

This error is due to auto incremented primary key. you can't have
empty fixture file.

[James Bennett]

If you mean your fixture file is completely empty, then it's not a fixture at all and you shouldn't be trying to load it. Re-open with clarification if this isn't what you're trying to do.