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POMany to Many relation which has either not been installed or is abstract
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copied!<p>Consider the following (simplified) Django Models:</p> <pre><code>class productFamily(models.Model): name = models.CharField(max_length = 256) text = models.TextField(blank = False) image = models.ImageField(upload_to="products/img/") def __unicode__(self): return self.name class productModel(models.Model): productFamily = models.ForeignKey('productFamily') productFamily.help_text = 'ProductFamily to which this model belongs.' artNumber = models.CharField(max_length=100) name = models.CharField(max_length = 256) productDownloads = models.ManyToManyField('productModelDownLoad') productDownloads.help_text = 'Files associated to this product Model.' def __unicode__(self): return self.name class productModelDownload(models.Model): file = models.FileField(upload_to="products/downloads/") def __unicode__(self): return str(self.file) </code></pre> <p>I get the following error:</p> <blockquote> <p>products.productmodel: 'productDownloads' has an m2m relation with model productModelDownLoad, which has either not been installed or is abstract.</p> </blockquote> <p>I found a page in the django docs that seems to address this, but i can't quite make sense of what it means: <a href="http://www.djangoproject.com/documentation/models/invalid_models/" rel="noreferrer">http://www.djangoproject.com/documentation/models/invalid_models/</a></p> <p>The Model looks valid to me, so what is the problem here?</p>

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