Error:
Odoo Server Error

Traceback (most recent call last):
  File "/home/sbu/odoo/odoo/http.py", line 631, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/home/sbu/odoo/odoo/http.py", line 325, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "/home/sbu/odoo/odoo/tools/pycompat.py", line 14, in reraise
    raise value
  File "/home/sbu/odoo/odoo/http.py", line 676, in dispatch
    result = self._call_function(**self.params)
  File "/home/sbu/odoo/odoo/http.py", line 357, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/sbu/odoo/odoo/service/model.py", line 92, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/sbu/odoo/odoo/http.py", line 350, in checked_call
    result = self.endpoint(*a, **kw)
  File "/home/sbu/odoo/odoo/http.py", line 894, in __call__
    return self.method(*args, **kw)
  File "/home/sbu/odoo/odoo/http.py", line 522, in response_wrap
    response = f(*args, **kw)
  File "/home/sbu/odoo/addons/web/controllers/main.py", line 952, in call_button
    action = self._call_kw(model, method, args, kwargs)
  File "/home/sbu/odoo/addons/web/controllers/main.py", line 940, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/home/sbu/odoo/odoo/api.py", line 364, in call_kw
    method = getattr(type(model), name)
AttributeError: type object 'slide.channel' has no attribute 'action_open_edit_form'