D:\\zjm_code\\basic_project>python manage.py syncdb
Error: One or more models did not validate:
topics.topic: Accessor for field \'content_type\' clashes with rel
But in my case i am create a separate app for some functionality with same model name and field ( copy/paste ;) ) that's because of this type of error occurs i am just deleted the old model and code will work fine
May be help full for beginners like me :)