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RuntimeWarning: Model 'docket.search' was already registered. Reloading models is not advised as it can lead to inconsistencies, most notably with related models.

I'm guessing this is some automatic feature of iPython, but is there an easy solution? Is this something I even need to solve?

Doesn't seem like a match. This is a problem that only seems to happen in ipython, so far, and only when you do imports. mlissner Sep 5, 2015 at 19:55 2 secs after reading your answer i was able to fix it. Automatic 'code refactoring' from my IDE was the cause. (We all know which one it is) user528025 May 12, 2020 at 11:00 Ahh! The error I got was AttributeError: type object 'User' has no attribute 'USERNAME_FIELD' . Turned out I had a duplicate model (from copying and pasting) YCode Apr 16, 2022 at 14:45

I got the same error when mistakenly defining 2 of the same name models(classes) in "models.py" as shown below:

# "models.py"
from django.db import models
class Product(models.Model):
    name = models.CharField(max_length=100)
class Product(models.Model):
    title = models.CharField(help_text=_("Required"), max_length=200)
        

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