If I understand your question correctly, the below given code should solve
your issue.

yourFKField = models.ForeignKey('YourModel')

Notice the quotes around YourModel.
On Oct 6, 2015 10:41 PM, "Fellipe Henrique" <[email protected]> wrote:
>
> My problem is NOT the order... but I need to create "core app" first..
after that, install "account app".. because my model in "account app" has a
FK to "core app"
>
>
>
> T.·.F.·.A.·.     S+F
> Fellipe Henrique P. Soares
>
> e-mail: > echo "lkrrovknFmsgor4ius" | perl -pe \
's/(.)/chr(ord($1)-2*3)/ge'
> Blog: http://fhbash.wordpress.com/
> GitHub: https://github.com/fellipeh
> Twitter: @fh_bash
>
> On Tue, Oct 6, 2015 at 11:51 AM, Erol Merdanović <[email protected]>
wrote:
>>
>> If the order is the problem, then you can define dependencies
>>
>>
https://docs.djangoproject.com/en/1.8/howto/writing-migrations/#controlling-the-order-of-migrations
>>
>> On Tuesday, 6 October 2015 16:34:04 UTC+2, Fellipe Henrique wrote:
>>>
>>> Just to update... these error occurs  when I use PostgreSQL, using
SQLite works perfect...
>>>
>>> T.·.F.·.A.·.     S+F
>>> Fellipe Henrique P. Soares
>>>
>>> e-mail: > echo "lkrrovknFmsgor4ius" | perl -pe \
's/(.)/chr(ord($1)-2*3)/ge'
>>> Blog: http://fhbash.wordpress.com/
>>> GitHub: https://github.com/fellipeh
>>> Twitter: @fh_bash
>>>
>>> On Tue, Oct 6, 2015 at 10:08 AM, Fellipe Henrique <[email protected]>
wrote:
>>>>
>>>> Hello,
>>>>
>>>> I have my custom user model in my "account" app, and I have in my
"core" app..
>>>>
>>>> Inside my "core app" I have my City Model...
>>>>
>>>> But I need each user has to be set the user City...
>>>>
>>>> My problem: when I apply the migration, I give the error:  "city
model" does not exist. even I put the "core app" abouve the "account app"
in settings.py.
>>>>
>>>> It's appears django try to make the account migration first, but It's
doesn't create yet my "city app"...
>>>>
>>>> What's the better approach to solve these problem?
>>>>
>>>> Regards.
>>>>
>>>> T.·.F.·.A.·.     S+F
>>>> Fellipe Henrique P. Soares
>>>>
>>>> e-mail: > echo "lkrrovknFmsgor4ius" | perl -pe \
's/(.)/chr(ord($1)-2*3)/ge'
>>>> Blog: http://fhbash.wordpress.com/
>>>> GitHub: https://github.com/fellipeh
>>>> Twitter: @fh_bash
>>>
>>>
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