'str' object has no attribute

Exception Type:	AttributeError
Exception Value: 'str' object has no attribute '_default_manager'


/Users/wdahab/code/nova/nova/urls.py in <module>
import clients.views, firms.views, people.views,notes.views,registration.urls, files.views ...
▶ Local vars
/Users/wdahab/code/nova/nova/apps/firms/views.py in <module>
from .forms import * ...
▶ Local vars
/Users/wdahab/code/nova/nova/apps/firms/forms.py in <module>
class FirmMeetingForm(ModelForm): ...
▼ Local vars
Variable	Value
Firm
None
Product
None
reverse
None
FirmForm
None
__builtins__
{'ArithmeticError': <type 'exceptions.ArithmeticError'>,
 'AssertionError': <type 'exceptions.AssertionError'>,
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 'DeprecationWarning': <type 'exceptions.DeprecationWarning'>,
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 'Ellipsis': Ellipsis,
 'EnvironmentError': <type 'exceptions.EnvironmentError'>,
 'Exception': <type 'exceptions.Exception'>,
 'False': False,
 'FloatingPointError': <type 'exceptions.FloatingPointError'>,
 'FutureWarning': <type 'exceptions.FutureWarning'>,
 'GeneratorExit': <type 'exceptions.GeneratorExit'>,
 'IOError': <type 'exceptions.IOError'>,
 'ImportError': <type 'exceptions.ImportError'>,
 'ImportWarning': <type 'exceptions.ImportWarning'>,
 'IndentationError': <type 'exceptions.IndentationError'>,
 'IndexError': <type 'exceptions.IndexError'>,
 'KeyError': <type 'exceptions.KeyError'>,
 'KeyboardInterrupt': <type 'exceptions.KeyboardInterrupt'>,
 'LookupError': <type 'exceptions.LookupError'>,
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 'None': None,
 'NotImplemented': NotImplemented,
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 'Warning': <type 'exceptions.Warning'>,
 'ZeroDivisionError': <type 'exceptions.ZeroDivisionError'>,
 '__debug__': True,
 '__doc__': "Built-in functions, exceptions, and other objects.\n\nNoteworthy: None is the `nil' object; Ellipsis represents `...' in slices.",
 '__import__': <built-in function __import__>,
 '__name__': '__builtin__',
 '__package__': None,
 'abs': <built-in function abs>,
 'all': <built-in function all>,
 'any': <built-in function any>,
 'apply': <built-in function apply>,
 'basestring': <type 'basestring'>,
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 'bool': <type 'bool'>,
 'buffer': <type 'buffer'>,
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 'chr': <built-in function chr>,
 'classmethod': <type 'classmethod'>,
 'cmp': <built-in function cmp>,
 'coerce': <built-in function coerce>,
 'compile': <built-in function compile>,
 'complex': <type 'complex'>,
 'copyright': Copyright (c) 2001-2013 Python Software Foundation.
All Rights Reserved.

Copyright (c) 2000 BeOpen.com.
All Rights Reserved.

Copyright (c) 1995-2001 Corporation for National Research Initiatives.
All Rights Reserved.

Copyright (c) 1991-1995 Stichting Mathematisch Centrum, Amsterdam.
All Rights Reserved.,
 'credits':     Thanks to CWI, CNRI, BeOpen.com, Zope Corporation and a cast of thousands
    for supporting Python development.  See www.python.org for more information.,
 'delattr': <built-in function delattr>,
 'dict': <type 'dict'>,
 'dir': <built-in function dir>,
 'divmod': <built-in function divmod>,
 'enumerate': <type 'enumerate'>,
 'eval': <built-in function eval>,
 'execfile': <built-in function execfile>,
 'exit': Use exit() or Ctrl-D (i.e. EOF) to exit,
 'file': <type 'file'>,
 'filter': <built-in function filter>,
 'float': <type 'float'>,
 'format': <built-in function format>,
 'frozenset': <type 'frozenset'>,
 'getattr': <built-in function getattr>,
 'globals': <built-in function globals>,
 'hasattr': <built-in function hasattr>,
 'hash': <built-in function hash>,
 'help': Type help() for interactive help, or help(object) for help about object.,
 'hex': <built-in function hex>,
 'id': <built-in function id>,
 'input': <built-in function input>,
 'int': <type 'int'>,
 'intern': <built-in function intern>,
 'isinstance': <built-in function isinstance>,
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 'open': <built-in function open>,
 'ord': <built-in function ord>,
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 'print': <built-in function print>,
 'property': <type 'property'>,
 'quit': Use quit() or Ctrl-D (i.e. EOF) to exit,
 'range': <built-in function range>,
 'raw_input': <built-in function raw_input>,
 'reduce': <built-in function reduce>,
 'reload': <built-in function reload>,
 'repr': <built-in function repr>,
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 'round': <built-in function round>,
 'set': <type 'set'>,
 'setattr': <built-in function setattr>,
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 'sum': <built-in function sum>,
 'super': <type 'super'>,
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 'unichr': <built-in function unichr>,
 'unicode': <type 'unicode'>,
 'vars': <built-in function vars>,
 'xrange': <type 'xrange'>,
 'zip': <built-in function zip>}
FirmMeeting
None
__file__
None
ProductForm
None
__package__
None
forms
None
models
None
User
None
__name__
None
MetaModel
None
ASSET_CLASSES
None
Performance
None
JSONField
None
ModelForm
None
__doc__
None