Re: [Django1.8.5] About migrate

Hey,

What is the code of your managers and what's the full stacktrace?
You can use dpaste.de as a pastebin :)

For the related field, iirc, it's recommended to reference them with a  string.

try to change this

cards = models.ManyToManyField(Card, blank=True)

by:

cards = models.ManyToManyField('app.Card')  

On 11/17/2015 04:45 AM, Dennis Liou wrote:

Hi :

  
    I am new in Django, and I meet a bug.

    I was upgrade django from 1.5 to 1.8.

    My Django environment now is : Django 1.8.5 with python 2.7.10

   This is my auth models:
     

Class Card(models.Model):      cardgroup = models.CharField(_('CardGroup'), max_length=60)      cardname = models.CharField(_('CardName'), max_length=60)      disabled = models.BooleanField(_('disabled'), default=False)      objects = CardManager()        class Meta:          unique_together = (cardgroup', 'cardname')      def __unicode__(self):          return self.name      @property      def name(self):          return '%s_%s' % (.self.cardgroup, self.cardname)    Class Factory(models.Model):    sort = models.CharField(_('Short Name'), max_length=20, unique=True)    address = models.CharField(_('Factory address'), max_length=20)    cards = models.ManyToManyField(Card, blank=True)      def __unicode__(self):          return self.short        After "#python manage.py migrate" twice , I got a error:      ValueError: Lookup failed for model referenced by field core.auth.Factory.card:core.auth.core.auth.Card        Because of that, I cannot syncdb ,either.     

    My auth apps was included in a core floder.

      Help me fix the bug, please. I was coming unstuck for a mouth.     

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