你应该将polls.apps.PollsConfig添加到setting.py中的INSTALLED_APPS中

还有一个非常愚蠢的问题是在模型中定义两个类Meta。在这种情况下，在运行makemigrations时，对第一个的任何更改都不会应用。

class Product(models.Model):
    somefield = models.CharField(max_length=255)
    someotherfield = models.CharField(max_length=255)

    class Meta:
        indexes = [models.Index(fields=["somefield"], name="somefield_idx")]

    def somefunc(self):
        pass

    # Many lines...

    class Meta:
        indexes = [models.Index(fields=["someotherfield"], name="someotherfield_idx")]

对于这个错误，我的问题在于我包含了:

class Meta:
   abstract = True

里面的模型，我想创建迁移。

django在执行makemigrations命令时没有检测到要迁移的内容有多种可能的原因。

migration folder You need a migrations package in your app. INSTALLED_APPS You need your app to be specified in the INSTALLED_APPS .dict Verbosity start by running makemigrations -v 3 for verbosity. This might shed some light on the problem. Full path In INSTALLED_APPS it is recommended to specify the full module app config path 'apply.apps.MyAppConfig' --settings you might want to make sure the correct settings file is set: manage.py makemigrations --settings mysite.settings specify app name explicitly put the app name in manage.py makemigrations myapp - that narrows down the migrations for the app alone and helps you isolate the problem. model meta check you have the right app_label in your model meta Debug django debug django core script. makemigrations command is pretty much straight forward. Here's how to do it in pycharm. change your script definition accordingly (ex: makemigrations --traceback myapp)

多个数据库:

当使用django的Db Router时，Router类(你的自定义Router类)需要实现allow_syncdb方法。

Makemigrations总是为模型更改创建迁移，但是如果 allow_migrate()返回False，

我忘记写正确的论点了

class LineInOffice(models.Model):   # here
    addressOfOffice = models.CharField("Корхоная жош",max_length= 200)   #and here
    ...

在models.py 然后就不那么烦人了

在应用程序“myApp”中未检测到任何变化

这是一个评论，但可能应该是一个答案。

确保你的应用程序名称在settings.py INSTALLED_APPS中，否则无论你做什么，它都不会运行迁移。

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',

    'blog',
]

然后运行:

./manage.py makemigrations blog