I'm trying to add social network feature in my module. I added 'mail' dependency to `__manifest__.py`. Then inherited 'mail.thread' to model. And then added 'oe_chatter' class to views.xml.But It shows KeyError:' share'

__manifest__.py

depends = ['mail']

models.py

class MyModel(models.Model):
    _name = 'app.mymodel'
    _inherit = 'mail.thread'
     ....
     ....

views.xml

<div class="oe_chatter">
    <field name="message_follower_ids" widget="mail_followers"/>
    <field name="message_ids" widget="mail_thread"/>
</div>

Server Error

Traceback (most recent call last):
  File "/opt/odoo/odoo-10.0/odoo/http.py", line 640, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/opt/odoo/odoo-10.0/odoo/http.py", line 677, in dispatch
    result = self._call_function(**self.params)
  File "/opt/odoo/odoo-10.0/odoo/http.py", line 333, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/opt/odoo/odoo-10.0/odoo/service/model.py", line 101, in wrapper
    return f(dbname, *args, **kwargs)
  File "/opt/odoo/odoo-10.0/odoo/http.py", line 326, in checked_call
    result = self.endpoint(*a, **kw)
  File "/opt/odoo/odoo-10.0/odoo/http.py", line 935, in __call__
    return self.method(*args, **kw)
  File "/opt/odoo/odoo-10.0/odoo/http.py", line 506, in response_wrap
    response = f(*args, **kw)
  File "/opt/odoo/odoo-10.0/addons/web/controllers/main.py", line 889, in call_button
    action = self._call_kw(model, method, args, {})
  File "/opt/odoo/odoo-10.0/addons/web/controllers/main.py", line 877, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/opt/odoo/odoo-10.0/odoo/api.py", line 689, in call_kw
    return call_kw_multi(method, model, args, kwargs)
  File "/opt/odoo/odoo-10.0/odoo/api.py", line 680, in call_kw_multi
    result = method(recs, *args, **kwargs)
  File "/opt/odoo/odoo-10.0/odoo/addons/base/module/module.py", line 410, in button_immediate_install
    return self._button_immediate_function(type(self).button_install)
  File "/opt/odoo/odoo-10.0/odoo/addons/base/module/module.py", line 484, in _button_immediate_function
    modules.registry.Registry.new(self._cr.dbname, update_module=True)
  File "/opt/odoo/odoo-10.0/odoo/modules/registry.py", line 82, in new
    odoo.modules.load_modules(registry._db, force_demo, status, update_module)
  File "/opt/odoo/odoo-10.0/odoo/modules/loading.py", line 339, in load_modules
    loaded_modules, update_module)
  File "/opt/odoo/odoo-10.0/odoo/modules/loading.py", line 237, in load_marked_modules
    loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks)
  File "/opt/odoo/odoo-10.0/odoo/modules/loading.py", line 135, in load_module_graph
    registry.setup_models(cr, partial=True)
  File "/opt/odoo/odoo-10.0/odoo/modules/registry.py", line 294, in setup_models
    model._setup_complete()
  File "/opt/odoo/odoo-10.0/odoo/models.py", line 2883, in _setup_complete
    field.setup_triggers(self)
  File "/opt/odoo/odoo-10.0/odoo/fields.py", line 702, in setup_triggers
    for model, field, path in self.resolve_deps(model):
  File "/opt/odoo/odoo-10.0/odoo/fields.py", line 680, in resolve_deps
    field = model._fields[fname]
KeyError: 'share'