title: Migration error with Django 1.7.1
body: <p>I'm getting an error when performing a migration after introducing a new app (django-allauth). I'm not sure what else to try in order to fix the error. I've tried a few things but they don't seem to help unfortunately.</p>
  
  <p>when running <strong>manage.py migrate</strong>:</p>
  
  <pre><code>File "D:\Python27\Lib\site-packages\django\db\migrations\state.py", line 71, 
  in render raise     
  InvalidBasesError("Cannot resolve bases for %r\nThis can happen if you are inheriting 
  models from an app with migrations (e.g. contrib.auth)\n in an app with no migrations; 
  see https://docs.djangoproject.com/en/1.7/topics/migrations/#dependencies for more" % 
  new_unrendered_models)
  django.db.migrations.state.InvalidBasesError: Cannot resolve bases for 
  [&lt;ModelState: 'blog.BlogPage'&gt;, &lt;ModelState: 'blog.BlogIndexPage'&gt;]
  This can happen if you are inheriting models from an app with migrations 
  (e.g. contrib.auth) in an app with no migrations; see
  https://docs.djangoproject.com/en/1.7/topics/migrations/#dependencies for more
  </code></pre>
  
  <p><strong>models.py</strong></p>
  
  <pre><code>    from django.db import models
      from wagtail.wagtailcore.models import Page, Orderable
      from wagtail.wagtailcore.fields import RichTextField
      from wagtail.wagtailadmin.edit_handlers import FieldPanel  ,MultiFieldPanel,InlinePanel, PageChooserPanel
      from modelcluster.fields import ParentalKey
  
  class BlogPage(Page):
      body = RichTextField()
      date = models.DateField("Post date")
      indexed_fields = ('body', )
      search_name = "Blog Page"
  
  BlogPage.content_panels = [
      FieldPanel('title', classname="full title"),
      FieldPanel('date'),
      FieldPanel('body', classname="full"),
  ]
  
  
  class LinkFields(models.Model):
      link_page = models.ForeignKey(
          'wagtailcore.Page',
          null=True,
          blank=True,
          related_name='+'
      )
  
  panels = [
      PageChooserPanel('link_page'),
  ]
  
  class Meta:
      abstract = True
  
  class RelatedLink(LinkFields):
      title = models.CharField(max_length=255, help_text="Link title")
      panels = [
           FieldPanel('title'),
           MultiFieldPanel(LinkFields.panels, "Link"),
       ]
  
       class Meta:
           abstract = True
  
  
   class BlogIndexPageRelatedLink(Orderable, RelatedLink):
       page = ParentalKey('blog.BlogIndexPage', related_name='related_links')
  
   class BlogIndexPage(Page):
       intro = models.CharField(max_length=256)
       indexed_fields = ('body', )
       search_name = "Blog Index Page"
  
   BlogIndexPage.content_panels = [
       FieldPanel('title', classname="full title"),
       FieldPanel('intro', classname="full"),
       InlinePanel(BlogIndexPage, 'related_links', label="Related links"),
   ]    
  </code></pre>
  
  <p><strong>What I've tried so far:</strong> </p>
  
  <ol>
  <li>followed the advice here: <a href="https://stackoverflow.com/a/25858659">https://stackoverflow.com/a/25858659</a> however this has not changed anything for me. </li>
  <li>I've also tried <a href="https://code.djangoproject.com/ticket/22051#comment:12" rel="nofollow noreferrer">https://code.djangoproject.com/ticket/22051#comment:12</a> with no success.</li>
  </ol>
  
  <p><strong>note:</strong> makemigrations runs (no changes detected) but migrate fails.</p>
  
  <p><strong>platform setup</strong>: This is currently on Django 1.7.1 on a Windows box. django-allauth runs successfully within other apps on this box.</p>
  
  <p><strong>Has anyone come across this before and is there a fix?</strong></p>
  
  <p>thanks in advance</p>
  
  <p><strong>---issued command sequence below:</strong></p>
  
  <pre><code>     (env) D:\git\rebootv2.1\blog&gt;python manage.py migrate
       D:\Python27\Lib\site-packages\treebeard\mp_tree.py:102: RemovedInDjango18Warning:      `MP_NodeManager.get_query_set` method
   should be renamed `get_queryset`.
     class MP_NodeManager(models.Manager):
  
   Operations to perform:
     Synchronize unmigrated apps: account, allauth, modelcluster, blog, compressor, facebook,      wagtailsnippets, socialaccount
     Apply all migrations: core, wagtailusers, wagtailembeds, wagtailadmin, sessions, admin,      wagtailcore, sites, auth, contenttypes, wagtaildocs, taggit, wagtailsearch, wagtailforms,      wagtailredirects, wagtailimages
   Synchronizing apps without migrations:
     Creating tables...
     Installing custom SQL...
     Installing indexes...
   Running migrations:
     Applying sites.0001_initial...Traceback (most recent call last):
     File "manage.py", line 10, in &lt;module&gt;
       execute_from_command_line(sys.argv)
     File "D:\Python27\Lib\site-packages\django\core\management\__init__.py", line 385, in execute_from_command_line
  utility.execute()
     File "D:\Python27\Lib\site-packages\django\core\management\__init__.py", line 377, in execute
  self.fetch_command(subcommand).run_from_argv(self.argv)
     File "D:\Python27\Lib\site-packages\django\core\management\base.py", line 288, in run_from_argv
  self.execute(*args, **options.__dict__)
     File "D:\Python27\Lib\site-packages\django\core\management\base.py", line 338, in execute
  output = self.handle(*args, **options)
     File "D:\Python27\Lib\site-packages\django\core\management\commands\migrate.py", line 160, in handle
  executor.migrate(targets, plan, fake=options.get("fake", False))
     File "D:\Python27\Lib\site-packages\django\db\migrations\executor.py", line 63, in migrate
  self.apply_migration(migration, fake=fake)
     File "D:\Python27\Lib\site-packages\django\db\migrations\executor.py", line 91, in apply_migration
  if self.detect_soft_applied(migration):
     File "D:\Python27\Lib\site-packages\django\db\migrations\executor.py", line 135, in detect_soft_applied
  apps = project_state.render()
     File "D:\Python27\Lib\site-packages\django\db\migrations\state.py", line 71, in render raise InvalidBasesError("Cannot resolve bases for %r\nThis can happen if you are inheriting models from an app with migrations (e.g. contrib.auth)\n in an app with no migrations; see https://docs.djangoproject.com/en/1.7/topics/migrations/#dependencies for more" % new_unrendered_models)
   django.db.migrations.state.InvalidBasesError: Cannot resolve bases for [&lt;ModelState: 'blog.BlogPage'&gt;, &lt;ModelState: 'blog.BlogIndexPage'&gt;]
   This can happen if you are inheriting models from an app with migrations (e.g. contrib.auth)
    in an app with no migrations; see https://docs.djangoproject.com/en/1.7/topics/migrations/#dependencies for more
  
   (env) D:\git\rebootv2.1\blog&gt;python manage.py makemigrations
   D:\Python27\Lib\site-packages\treebeard\mp_tree.py:102: RemovedInDjango18Warning: `MP_NodeManager.get_query_set` method
   should be renamed `get_queryset`.
     class MP_NodeManager(models.Manager):
  
   No changes detected
  </code></pre>
  
  <p><strong>[what fixed this for me]</strong> - ended up being a problem with sequencing I guess....</p>
  
  <ol>
  <li>disable all of the allauth apps within INSTALLED_APPS in settings.py</li>
  <li>run manage.py migrate enable all of the allauth apps and disable the
  wagtail app that was generated for the project (e.g. blog)</li>
  <li>run manage.py migrate again enable both sets of apps in INSTALLED_APPS</li>
  <li>run manage.py migrate again</li>
  </ol>
  
  <p>seems to be happy now. </p>
  
  <p>hope this helps someone and saves them some time!</p>