AttributeError: 'module' object has no attribute 'GeoSQLComp

Traceback (most recent call last):

 File "/app/lib/python2.7/site-packages/django/core/handlers/base.py", line 111, in get_response
   response = callback(request, *callback_args, **callback_kwargs)

 File "/app/lib/python2.7/site-packages/django/contrib/admin/options.py", line 366, in wrapper
   return self.admin_site.admin_view(view)(*args, **kwargs)

 File "/app/lib/python2.7/site-packages/django/utils/decorators.py", line 91, in _wrapped_view
   response = view_func(request, *args, **kwargs)

 File "/app/lib/python2.7/site-packages/django/views/decorators/cache.py", line 89, in _wrapped_view_func
   response = view_func(request, *args, **kwargs)

 File "/app/lib/python2.7/site-packages/django/contrib/admin/sites.py", line 196, in inner
   return view(request, *args, **kwargs)

 File "/app/lib/python2.7/site-packages/django/utils/decorators.py", line 25, in _wrapper
   return bound_func(*args, **kwargs)

 File "/app/lib/python2.7/site-packages/django/utils/decorators.py", line 91, in _wrapped_view
   response = view_func(request, *args, **kwargs)

 File "/app/lib/python2.7/site-packages/django/utils/decorators.py", line 21, in bound_func
   return func(self, *args2, **kwargs2)

 File "/app/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1128, in changelist_view
   self)

 File "/app/lib/python2.7/site-packages/django/contrib/admin/views/main.py", line 72, in __init__
   self.get_results(request)

 File "/app/lib/python2.7/site-packages/django/contrib/admin/views/main.py", line 164, in get_results
   result_count = paginator.count

 File "/app/lib/python2.7/site-packages/django/core/paginator.py", line 53, in _get_count
   self._count = len(self.object_list)

 File "/app/lib/python2.7/site-packages/django/db/models/query.py", line 85, in __len__
   self._result_cache = list(self.iterator())

 File "/app/lib/python2.7/site-packages/django/db/models/query.py", line 287, in iterator
   compiler = self.query.get_compiler(using=db)

 File "/app/lib/python2.7/site-packages/django/db/models/sql/query.py", line 225, in get_compiler
   return connection.ops.compiler(self.compiler)(self, connection, using)

 File "/app/lib/python2.7/site-packages/django/db/backends/__init__.py", line 667, in compiler
   return getattr(self._cache, compiler_name)

AttributeError: 'module' object has no attribute 'GeoSQLCompiler'