Python Error: No module named admin_tools.dashboard.south_migrations.0003_auto__add_unique_dashboardpreferences_dashboard_id_user

This is probably because you don't have package django_admin_tools installed.

You can install it in command line via pip:

        pip install django_admin_tools
      

Install specific version:

        pip install "django_admin_tools==0.9.0"
      

Get more info about package via pypi.org: django_admin_tools